258,381 Pages


Shooting of President William McKinley in 1901; McKinley died eight days later from his wounds. (Illustration circa 1905 by T. Dart Walker.)

Gun violence is a regularly debated political issue in the United States. Gun-related violence is most common in poor urban areas and frequently associated with gang violence, often involving male juveniles or young adult males.[1][2] High-profile mass shootings have fueled debate over gun policies, even though these events are relatively rare.[3] In 2010, 358 murders were reported involving a rifle while 6,009 were reported involving a handgun; another 1,939 were reported with an unspecified type of firearm.[4] High-profile assassinations such as those of John F. Kennedy, Martin Luther King, and the Beltway sniper attacks involved the use of rifles, usually with telescopic sights, from concealed locations. Hand guns figured in the Virginia Tech shootings, Binghamton massacre, Fort Hood massacre, Oikos University shooting, and 2011 Tucson shooting. Assailants with multiple weapons committed the Aurora theater shooting, and the Columbine High School massacre. In 2009, according to the United Nations Office on Drugs and Crime, 66.9% of all homicides in the United States were perpetrated using a firearm.[5] Two-thirds of all gun-related deaths in the United States are suicides. In 2010, there were 19,392 firearm-related suicide deaths, and 11,078 firearm-related homicide deaths in the United States.[6]

Policies at the federal, state, and local levels have attempted to address gun violence through a variety of methods, including restricting firearms purchases by youths and other "at-risk" populations, setting waiting periods for firearm purchases, establishing gun "buy-back" programs, law enforcement and policing strategies, stiff sentencing of gun law violators, education programs for parents and children, and community-outreach programs. However, federal legislation intended to support gun owners rights may have the effect of limiting intentional interference of weapon sales to criminals domestically and insurgents abroad. A widely held apprehension to a national gun registry has led to the prohibition of ATF and local law enforcement from access to digital databases for the purpose of identification of the place of sale for weapons recovered at crime scenes.[7][8][9] Gun policies are influenced by interpretations of the Second Amendment to the United States Constitution, an amendment which has been the subject of disagreement over the years. It was not until 2008 that the Supreme Court first attempted to clarify the meaning of this amendment in District of Columbia v. Heller, in which it invalidated a firearm ban in Washington, D.C., stating that the second amendment protects an individual's right to possess a firearm for traditionally lawful purposes, such as self-defense within the home and within federal enclaves. In June 28, 2010 the Supreme Court ruled in the case of McDonald v. Chicago that this protection extends to the states as well.[10]

The Congressional Research Service in 2009 estimated there were 310 million firearms in the United States, not including weapons owned by the military. 114 million of these were handguns, 110 million were rifles, and 86 million were shotguns.[11] In that same year, the Census bureau stated the population of people in the United States at 305,529,237.[12]

Suicides involving firearmsEdit

Some research has shown an association between household firearm ownership and gun suicide rates within the US,[13][14] while other research has indicated the association is not statistically significant between countries.[15] During the 1980s and early 1990s, there was a strong upward trend in adolescent suicides with guns,[16] as well as a sharp overall increase in suicides among those age 75 and over.[17] In the United States, firearms remain the most common method of suicide, accounting for 50.7% of all suicides committed in 2006.[18]

Studies that attempt to link gun ownership to likely victimology often fail to account for the presence of guns owned by other people.[citation needed][19][20]

The US Department of Justice reports that approximately 60% of all adult firearm deaths are by suicide, 61% more than deaths by homicide.[21]

Violent crime related to gunsEdit



Homicides by weapon type, 1976-2004. Gun-involved homicides have increased since falling to a low in 1999[22]


Homicide offenders by age, 1976-2004[23]


Gun and overall homicides in Washington, D.C. are concentrated in crime hot spots located in neighborhoods (including Shaw, Sursum Corda, Trinidad, Anacostia, and Congress Heights) with socio-economic disadvantage, while homicide is rare in other neighborhoods.

While killing people in the 19th century was considered to be violent crime, killing sometimes took the form of riots and other forms of disorder in cities.[24] Gun violence sometimes played a role in these riots (see Haymarket riot). Homicide rates in cities such as Philadelphia were significantly lower in the 19th century than in modern times.[25] In 2010 USA homicides, guns were the weapon of choice, especially for multiple homicides.[26]

During the 1980s and early 1990s, homicide rates surged in cities across the United States (see graphs at right).[27] Handgun homicides accounted for nearly all of the overall increase in the homicide rate, from 1985 to 1993, while homicide rates involving other weapons declined during that time frame.[28] The rising trend in homicide rates during the 1980s and early 1990s was most pronounced among lower income and especially unemployed males. Youths and Hispanic and African American males in the United States were the most represented, with the injury and death rates tripling for black males aged 13 through 17 and doubling for black males aged 18 through 24.[16][23] The rise in crack cocaine use in cities across the United States is often cited as a factor for increased gun violence among youths during this time period.[29][30][31]

Gun-related death rates in the United States are eight times higher than they are in countries that are economically and politically similar to it; however, most countries similar to the United States have a more secure social network. Higher gun-related death rates can be found in developing countries and countries with political instability.[28][32][33] However, developed countries with strict gun laws have essentially eliminated gun violence.[34][35][36][37] Prevalence of homicide and violent crime is greatest in low income urban areas of the United States. In metropolitan areas, the homicide rate in 2005 was 6.1 per 100,000 compared with 3.5 in non-metropolitan counties.[38] In U.S. cities with populations greater than 250,000, the mean homicide rate was 12.1 per 100,000.[39] According to FBI statistics, the highest per capita rates of gun-related homicides in 2005 were in D.C. (35.4/100,000), Puerto Rico (19.6/100,000), Louisiana (9.9/100,000), and Maryland (9.9/100,000).[40] Homicide rates among 18- to 24-year-olds declined since 1993, but remain higher than they were prior to the 1980s.[23] In 2005, the 17 through 24 age group remains significantly overrepresented in violent crime statistics, particularly homicides involving firearms.[41] In 2005, 17- through 19-year-olds were 4.3% of the overall population of the United States.[42] This same age group accounted for 11.2% of those killed by firearm homicides.[43] This age group also accounted for 10.6% of all homicide offenses.[44] The 20- through 24-year-old age group accounted for 7.1% of the population,[42] while accounting for 22.5% of those killed by firearm homicides.[43] The 20 through 24 age group also accounted for 17.7% of all homicide offenses.[44] Those under age 17 are not overrepresented in homicide statistics. In 2005, 13- through 16-year-olds accounted for 6% of the overall population of the United States, but only accounted for 3.6% of firearm homicide victims,[43] and 2.7% of overall homicide offenses.[44]

People with a criminal record were also more likely to die as homicide victims.[16] Between 1990 and 1994, 75% of all homicide victims age 21 and younger in the city of Boston had a prior criminal record.[45] In Philadelphia, the percentage of those killed in gun homicides that had prior criminal records increased from 73% in 1985 to 93% in 1996.[16][46] In Richmond, Virginia, the risk of gunshot injury is 22 times higher for those males involved with crime.[47]

In 2005, 75% of the 10,100 homicides committed using firearms in the United States were committed using handguns, compared to 4% with rifles, 5% with shotguns, and the rest with unspecified firearms.[48] The likelihood that a death will result is significantly increased when either the victim or the attacker has a firearm.[49] For example, the mortality rate for gunshot wounds to the heart is 84%, compared to 30% for people who sustain stab wounds to the heart.[50]

The incidence of homicides committed with a firearm in the US is much greater than some other advanced countries. In the United States in 2009 United Nations statistics record 3.0 intentional homicides committed with a firearm per 100,000 inhabitants; for comparison, the figure for the United Kingdom, with where handguns are prohibited was 0.07 per 100,000, about 40 times lower, and for Germany 0.2.[51] Gun Homicides in Switzerland however are similarly low, at 0.52 in 2010[52] even though they rank third in the world for highest number of guns per citizen.[52]

Deadly mass shootings have resulted in considerable coverage by the media. These shootings have represented 1% of all deaths by gun between 1980 and 2008.[53]

U.S. presidential assassinations and attemptsEdit

At least eleven assassination attempts with firearms have been made on U.S. presidents (over one-fifth of all presidents); four were successful, three with handguns and one with a rifle.

Abraham Lincoln survived an earlier attack,[54] but was killed by a .44-caliber pistol round fired by John Wilkes Booth.[55] James A. Garfield was killed by Charles J. Guiteau using a .44-caliber pistol September 19, 1881. William McKinley was killed by two rounds fired from a .32-caliber revolver September 14, 1901.[55] John F. Kennedy was assassinated by Lee Harvey Oswald with a Bolt-Action rifle November 22, 1963.[56]

Andrew Jackson, Harry S. Truman, and Gerald Ford (two attempts) survived assassination attempts unharmed.[57][58][59] Ronald Reagan survived after being shot by John Hinckley, Jr. with a .22-caliber revolver.[60] Former president Theodore Roosevelt was shot and wounded during the 1912 presidential campaign.[61] On February 15, 1933, Giuseppe Zangara attempted to assassinate president-elect Franklin Delano Roosevelt, who was giving a speech in Miami, Florida.[62]'

Response to these events has resulted in federal legislation to regulate the public possession of firearms. For example, the Kennedy assassination (along with others) resulted in the Gun Control Act of 1968. The GCA is a federal law signed by President Lyndon Johnson that broadly regulates the firearms industry and firearms owners. It primarily focuses on regulating interstate commerce in firearms by largely prohibiting interstate firearms transfers except among licensed manufacturers, dealers, and importers.

Other violent crimeEdit

A quarter of robberies of commercial premises in the United States are committed with guns.[63] Fatalities are three times as likely in robberies committed with guns than where other, or no, weapons are used,[63][64][65] with similar patterns in cases of family violence.[66] Criminologist Philip J. Cook hypothesized that if guns were less available, criminals might commit the same crime, but with less-lethal weapons.[67] He finds that the level of gun ownership in the 50 largest U.S. cities correlates with the rate of robberies committed with guns, but not with overall robbery rates.[68][69] A significant number of homicides are the consequence of an unintended escalation of another crime in which firearms are present, with no initial intent to kill.[65][70] Overall robbery and assault rates in the United States are comparable to those in other developed countries, such as Australia and Finland, with much lower levels of gun ownership.[67][70]

See also Assault with a deadly weapon

Gun ownershipEdit

The General Social Survey (GSS) is a primary source for data on firearm ownership, with surveys periodically done by other organizations such as Harris Interactive.[71] In 2004, 36.5% of Americans reported having a gun in their home and in 1997, 40% of Americans reported having a gun in their homes. At this time there were approximately 44 million gun owners in the United States. This meant that 25 percent of all adults owned at least one firearm. These owners possessed 192 million firearms, of which 65 million were handguns.[72] The number of American homes reporting have a gun in their homes was down from 46% as reported in 1989.[73] Cook suggested that increased numbers of female-headed households may have been a factor in declining household gun ownership.[28] A National Survey on Private Ownership and Use of Firearms (NSPOF), conducted in 1994, indicated that Americans owned 192 million guns: 36% rifles, 34% handguns, 26% shotguns, and 4% other types of long guns.[74] Most firearm owners owned multiple firearms, with the NSPOF survey indicating 25% of adults owned firearms.[74] In the United States, 11% of households reported actively being involved in hunting,[73] with the remaining firearm owners having guns for self-protection and other reasons. Throughout the 1970s and much of the 1980s, the rate of gun ownership in the home ranged from 45-50%.[73] Rapid increases in gun purchases characterized by exceptionally large crowds accruing at gun vendors and gun shows is consistently observed due to the possibility of increased gun control following highly publicized mass murders.[75][76][77][78][79] Gun ownership also varied across geographic regions, ranging from 25% rates of ownership in the Northeastern United States to 60% rates of ownership in the East South Central States.[80] A Gallup poll (2004) indicated that 49% of men reported gun ownership, compared to 33% of women, and 44% of whites owned a gun, compared to only 24% of nonwhites.[81] More than half of those living in rural areas (56%) owned a gun, compared with 40% of suburbanites and 29% of those in urban areas.[81] More than half (53%) of Republicans owned guns, compared with 36% of political independents and 31% of Democrats.[81] One criticism of the GSS survey and other proxy measures of gun ownership, is that they do not provide adequate macro-level detail to allow conclusions on the relationship between overall firearm ownership and gun violence.[28] Kleck compared various survey and proxy measures and found no correlation between overall firearm ownership and gun violence.[19][82]


The effectiveness and safety of guns used for personal defense is debated. Studies place the instances of guns used in personal defense as low as 65 thousand times per year, and as high as 2.5 million times per year. Under President Clinton, the Department of Justice conducted a survey in 1994 that placed the usage rate of guns used in personal defense at 1.5 million times per year, but noted this was likely to be an overestimate.[82]

Between 1987 and 1990, McDowall found that guns were used in defense during a crime incident 64,615 times annually (258,460 times total over the whole period).[83] This equated to two times out of 1,000 criminal incidents (0.2%) that occurred in this period, including criminal incidents where no guns were involved at all.[83] For violent crimes, assault, robbery, and rape, guns were used 0.83% of the time in self-defense.[83] Of the times that guns were used in self-defense, 71% of the crimes were committed by strangers, with the rest of the incidents evenly divided between offenders that were acquaintances or persons well known to the victim.[83] In 28% of incidents where a gun was used for self-defense, victims fired the gun at the offender.[83] In 20% of the self-defense incidents, the guns were used by police officers.[83] During this same period, 1987 to 1990, there were 46,319 gun homicides,[84] and the National Crime Victimization Survey estimated that 2,628,532 nonfatal crimes involving guns occurred.[83]

McDowall's study for the American Journal of Public Health contrasted with the 1993 study by Kleck, who found that 2.45 million crimes were thwarted each year in the United States by guns, and in most cases, the potential victim never fired a shot.[85] The results of the Kleck studies have been cited many times in scholarly and popular media.[86][87][88][89][90][91][92]

McDowall cited methodological issues with the Kleck studies: (1) Kleck used a very small sample size and (2) did not confine the definition of self-defense to attempted victimizations where physical attacks had already commenced.[83] Kleck and Gertz said they used an anonymous random digit dialed telephone survey, and did not know the identities of the 4,977 interviewed. They said the quality of sampling procedures was well above the level common in national surveys, using a large, nationally representative survey.[93] A study of gun use in the 1990s by Hemenway at the Harvard Injury Control Research Center found that criminal use of guns was far more common than self-defense use.[94] According to the Kleck study most successful preventions of victimization were accomplished without a shot being fired, which are not counted as a self-defense firearm usage by either the Hemenway or McDowall studies.[83][85][94] Hemenway considered that the Kleck figure was inconsistent with other known statistics for crime, citing that Kleck's figures apparently showed that guns were used many times more often for self-defense in burglaries than there were reported incidents of burglaries of premises whose occupants were awake and armed with firearms.[95] Hemenway concluded that under reasonable assumptions of random errors in sampling, because of the rarity of the event, the 2.5 million figure should be considered only as the top end of a 0-2.5 million confidence interval, suggesting a highly unreliable result that is probably a gross overestimate, with the true figure one tenth that amount or less. Alternative explanations could be that many more burglaries occurred than were reported to police, and/or people overreported their use of their guns for self-defense in burglaries. Kleck responded to the criticism by stating "It is an impressive achievement to be able to arrive at such high-powered conclusions without the inconvenience of gathering or even citing any new empirical evidence" and concluding that "Hemenway has failed to cast even mild doubt on the accuracy of our estimates." [96]

States in the highest quartile for gun ownership had homicide rates 114% higher than states in the lowest quartile of gun ownership.[97] Non-gun-related homicide rates were not significantly associated with rates of firearm ownership.[97]

Public policyEdit

Public policy as related to preventing gun violence is an ongoing political and social debate regarding both the restriction and availability of firearms within the United States. Policy at the Federal level is/has been governed by the Second Amendment, National Firearms Act, Gun Control Act of 1968, Firearm Owners Protection Act, Brady Handgun Violence Prevention Act, Violent Crime Control and Law Enforcement Act, and the Domestic Violence Offender Act. Gun policy in the United States has been revised many times with acts such as the Firearm Owners Protection Act, which loosened provisions for gun sales while also strengthening automatic firearms law.[98] At the local and state level gun laws such as handgun bans have been overturned by the Supreme Court in cases such as District of Columbia v. Heller and McDonald v. Chicago.These cases hold that an individual person has a right to possess a firearm. Columbia v. Heller only addressed the issue on Federal enclaves, while McDonald v. Chicago addressed the issue as relating to the individual states.[99]

Gun control proponents often cite the relatively high number of homicides committed with firearms as reason to support stricter gun control laws.[100] Firearm laws are a subject of debate in the United States, with firearms used for recreational purposes as well as for personal protection.[13] Gun rights advocates cite the use of firearms for self-protection, and to deter violent crime, as reasons why more guns can reduce crime.[101][102][103] Gun rights advocates also say criminals are the least likely to obey firearms laws, and so limiting access to guns by law-abiding people makes them more vulnerable to armed criminals.[83]

Access to firearmsEdit

S&W 60 3in

The most common type of gun confiscated by police and traced by the ATF are .38 special revolvers, such as this Smith and Wesson Model 60 .38 Special revolver with a 3-inch barrel[104]

U.S. policy aims to maintain the right of most people to own most types of firearms, while restricting access to firearms by people considered to present a higher risk of misuse.[67] Gun dealers in the United States are prohibited from selling handguns to those under the age of 21, and long guns to those under the age of 18.[67] There are also restrictions on selling guns to people not resident in the state.[67]

Assuming access to guns, the top ten guns involved in crime in the U.S. show a definite trend to favor handguns over long guns. The top ten guns used in crime, as reported by the ATF in 1993, were the Smith & Wesson .38 Special and .357 revolvers; Raven Arms .25 caliber, Davis P-380 .380 caliber, Ruger .22 caliber, Lorcin L-380 .380 caliber, and Smith & Wesson semi-automatic handguns; Mossberg and Remington 12 gauge shotguns; and the Tec DC-9 9 mm handgun.[104] An earlier 1985 study of 1,800 incarcerated felons showed that criminals preferred revolvers and other non-semi-automatic firearms over semi-automatic firearms.[105] In Pittsburgh a change in preferences towards pistols occurred in the early 1990s, coinciding with the arrival of crack cocaine and the rise of violent youth gangs.[106] Background checks in California from 1998 to 2000 resulted in 1% of sales being initially denied.[107] The types of guns most often denied included semiautomatic pistols with short barrels and of medium caliber.[107]

Among juveniles (minors under the age of 16, 17, or 18, depending on legal jurisdiction) serving in correctional facilities, 86% had owned a gun, with 66% acquiring their first gun by age 14.[2] There was also a tendency for juvenile offenders to have owned several firearms, with 65% owning three or more.[2] Juveniles most often acquired guns illegally from family, friends, drug dealers, and street contacts.[2] Inner-city youths cited "self-protection from enemies" as the top reason for carrying a gun.[2] In Rochester, New York, 22% of young males have carried a firearm illegally, most for only a short time.[108] There is little overlap between legal gun ownership and illegal gun carrying among youths.[108]

Firearms marketEdit


Source of firearms possessed by Federal inmates, 1997[109]

Atf ffl check

ATF inspector at a federally licensed gun dealer

Gun rights advocates complain that policy aimed at the supply side of the firearms market is based on limited research.[13] One consideration is that only 60-70% of firearms sales in the United States are transacted through federally licensed firearm dealers, with the remainder taking place in the "secondary market", in which previously owned firearms are transferred by non-dealers.[110][111][112][113] Access to secondary markets is generally less convenient to purchasers, and involves such risks as the possibility of the gun having been used previously in a crime.[114] Unlicensed private sellers were permitted by law to sell privately owned guns at gun shows or at private locations in 24 states as of 1998.[115] Regulations that limit the number of handgun sales in the primary, regulated market to one handgun a month per customer have been shown to be effective at reducing illegal gun trafficking by reducing the supply into the secondary market.[116] Taxes on firearm purchases are another means for government to influence the primary market.[117]

Federally licensed firearm dealers in the primary (new and used gun) market are regulated by the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF). Firearm manufacturers are required to mark all firearms manufactured with serial numbers. This allows the ATF to trace guns involved in crimes back to their last Federal Firearms License (FFL) reported change of ownership transaction, although not past the first private sale involving any particular gun. A report by the ATF released in 1999 found that 0.4% of federally licensed dealers sold half of the guns used criminally in 1996 and 1997.[3][118] This is sometimes done through "straw purchases."[3] State laws, such as those in California, that restrict the number of gun purchases in a month may help stem such "straw purchases."[3] An estimated 500,000 guns are stolen each year, becoming available to prohibited users.[110][117] During the ATF's Youth Crime Gun Interdiction Initiative (YCGII), which involved expanded tracing of firearms recovered by law enforcement agencies,[119] only 18% of guns used criminally that were recovered in 1998 were in possession of the original owner.[120] Guns recovered by police during criminal investigations were often sold by legitimate retail sales outlets to legal owners, and then diverted to criminal use over relatively short times ranging from a few months to a few years,[120][121][122] which makes them relatively new compared with firearms in general circulation.[117][123]

Federal legislationEdit

The first Federal legislation related to firearms was the Second Amendment to the United States Constitution ratified in 1791. For 143 years, this was the only major Federal legislation regarding firearms. The next Federal firearm legislation was the National Firearms Act of 1934, which created regulations for the sale of firearms, established taxes on their sale, and required registration of some types of firearms such as machine guns.[124]

In the aftermath of the Robert F. Kennedy and Martin Luther King Jr. assassinations, the Gun Control Act of 1968 was enacted. This Act regulated gun commerce, restricting mail order sales, and allowing shipments only to licensed firearm dealers. The Act also prohibited sale of firearms to felons, those under indictment, fugitives, illegal aliens, drug users, those dishonorably discharged from the military, and those in mental institutions.[67] The law also restricted importation of so-called Saturday night specials and other types of guns, and limited the sale of automatic weapons and semi-automatic weapon conversion kits.[3]

The Firearm Owners Protection Act, also known as the McClure-Volkmer Act, was passed in 1986. It changed some restrictions in the 1968 Act, allowing federally licensed gun dealers and individual unlicensed private sellers to sell at gun shows, while continuing to require licensed gun dealers to require background checks.[3] The 1986 Act also restricted the Bureau of Alcohol, Tobacco, and Firearms from conducting repetitive inspections, reduced the amount of record-keeping required of gun dealers, raised the burden of proof for convicting gun law violators, and changed restrictions on convicted felons from owning firearms.[3]

In the years following the passage of the Gun Control Act of 1968, people buying guns were required to show identification and sign a statement affirming that they were not in any of the prohibited categories.[67] Many states enacted background check laws that went beyond the federal requirements.[125] The Brady Handgun Violence Prevention Act passed by Congress in 1993 imposed a waiting period before the purchase of a handgun, giving time for, but not requiring, a background check to be made.[126] The Brady Act also required the establishment of a national system to provide instant criminal background checks, with checks to be done by firearms dealers.[127] The Brady Act only applied to people who bought guns from licensed dealers, whereas most felons buy guns from a black market.[128][128] Restrictions, such as waiting periods, are opposed by many, who argue that they impose costs and inconveniences on legitimate gun purchasers, such as hunters.[117]


Semi-automatic versions of the AK-47 assault rifle were affected under the 1994 ban

The Violent Crime Control and Law Enforcement Act, enacted in 1994, included the Federal Assault Weapons Ban, and was a response to public concern over mass shootings.[129] This provision prohibited the manufacture and importation of some semiautomatic firearms with certain features relevant to military use such as a folding stock, pistol grip, flash suppressor, and magazines holding more than ten rounds.[129] A grandfather clause was included that allowed firearms manufactured before 1994 to remain legal. A short-term evaluation by University of Pennsylvania criminologists Christopher S. Koper and Jeffrey A. Roth did not find any clear impact of this legislation on gun violence.[130] Given the short study time period of the evaluation, the National Academy of Sciences advised caution in drawing any conclusions.[117] In September 2004, the assault weapon ban expired, with its sunset clause.[131]

The Domestic Violence Offender Gun Ban, the Lautenberg Amendment, prohibited anyone previously convicted of a misdemeanor or felony crime of domestic violence from shipment, transport, ownership and use of guns or ammunition.[132] This law also prohibited the sale or gift of a firearm or ammunition to such a person. It was passed in 1996, and became effective in 1997. The law does not exempt people who use firearms as part of their duties, such as police officers or military personnel with applicable criminal convictions; they may not carry firearms.[133]

In the immediate aftermath of Hurricane Katrina, police and National Guard units in New Orleans confiscated firearms from private citizens in an attempt to prevent violence. In reaction, Congress passed the Disaster Recovery Personal Protection Act of 2006 in the form of an amendment to Appropriations Act, 2007. Section 706 of the Act prohibits federal employees and those receiving federal funds from confiscating legally possessed firearms during a disaster.[134]

State legislationEdit


Right-to-carry laws expanded in the 1990s as homicide rates from gun violence in the United States increased, largely in response to incidents such as the Luby's massacre of 1991 in Texas which directly resulted in the passage of a carrying concealed weapon, or CCW, law in Texas in 1995.[135] As Rorie Sherman, staff reporter for the National Law Journal wrote in an article published on April 18, 1994, "It is a time of unparalleled desperation about crime. But the mood is decidedly 'I'll do it myself' and 'Don't get in my way.'"[136]

The result was laws, or the lack thereof, that permitted persons to carry firearms openly, known as open carry, often without any permit required, in 22 states by 1998.[137] Laws that permitted persons to carry concealed handguns, sometimes termed a concealed handgun license, CHL, or concealed pistol license, CPL in some jurisdictions instead of CCW, existed in 34 states in the United States by 2004.[13] Since then, the number of states with CCW laws has increased; as of 2014, 49 states have some form of CCW laws on the books.[138]

Economist John Lott has argued that right-to-carry laws create a perception that more potential crime victims might be carrying firearms, and thus serve as a deterrent against crime.[139] Lott's study has been criticized for not adequately controlling for other factors, including other state laws also enacted, such as Florida's laws requiring background checks and waiting period for handgun buyers.[140] When Lott's data was re-analyzed by some researchers, the only statistically significant effect of concealed-carry laws found was an increase in assaults,[140] with similar findings by Jens Ludwig.[141] Since concealed-carry permits are only given to adults, Philip J. Cook suggested that analysis should focus on the relationship with adult and not juvenile gun incident rates.[67] He found no statistically significant effect.[67] A 2004 National Academy of Science survey of existing literature found that the data available "are too weak to support unambiguous conclusions" about the impact of right-to-carry laws on rates of violent crime.[13] NAS suggested that new analytical approaches and datasets at the county or local level are needed to adequately evaluate the impact of right-to-carry laws.[142]

Child Access Prevention (CAP)Edit

Child Access Prevention (CAP) laws, enacted by many states, require parents to store firearms safely, to minimize access by children to guns, while maintaining ease of access by adults.[143] CAP laws hold gun owners liable should a child gain access to a loaded gun that is not properly stored.[143] The Centers for Disease Control and Prevention claimed that, on average, one child died every three days in accidental incidents in the United States from 2000 to 2005.[144] In most states, CAP law violations are considered misdemeanors.[143] Florida's CAP law, enacted in 1989, permits felony prosecution of violators.[143] Research indicates that CAP laws are correlated with a reduction in unintentional gun deaths by 23%,[145] and gun suicides among those aged 14 through 17 by 11%.[146] A study by Lott did not detect a relationship between CAP laws and accidental gun deaths or suicides among those age 19 and under between 1979 and 1996.[20] The National Bureau of Economic Research has found that CAP laws are correlated with a reduction of non-fatal gun injuries among both children and adults by 30-40%.[143] Research also indicated that CAP laws were most highly correlated with reductions of non-fatal gun injuries in states where violations were considered felonies, whereas in states that considered violations as misdemeanors, the potential impact of CAP laws was not statistically significant.[147] All of these studies were correlational, and do not account for other potential contributing factors.

Local restrictionsEdit

Some local jurisdictions in the United States have more restrictive laws, such as Washington, D.C.'s Firearms Control Regulations Act of 1975, which banned residents from owning handguns, and required permitted firearms be disassembled and locked with a trigger lock. On March 9, 2007, a U.S. Appeals Court ruled the Washington, D.C. handgun ban unconstitutional.[148] The appeal of that case later led to the Supreme Court's ruling in District of Columbia v. Heller that D.C.'s ban was unconstitutional under the Second Amendment.

Despite New York City's strict gun control laws, guns are often trafficked in from other parts of the United States, particularly the southern states.[118][149] Results from the ATF's Youth Crime Gun Interdiction Initiative indicate that the percentage of imported guns involved in crimes is tied to the stringency of local firearm laws.[119]

Prevention programsEdit

Violence prevention and educational programs have been established in many schools and communities across the United States. These programs aim to change personal behavior of both children and their parents, encouraging children to stay away from guns, ensure parents store guns safely, and encourage children to solve disputes without resorting to violence.[150] Programs aimed at altering behavior range from passive (requiring no effort on the part of the individual) to active (supervising children, or placing a trigger lock on a gun).[150] The more effort required of people, the more difficult it is to implement a prevention strategy.[151][152] Prevention strategies focused on modifying the situational environment and the firearm itself may be more effective.[150] Empirical evaluation of gun violence prevention programs has been limited.[13] Of the evaluations that have been done, results indicate such programs have minimal effectiveness.[150]


SPEAK UP is a national youth violence prevention initiative created by The Center to Prevent Youth Violence,[153] which provides young people with tools to improve the safety of their schools and communities. The SPEAK UP program is an anonymous, national hot-line for young people to report threats of violence in their communities or at school. The hot-line is operated in accordance with a protocol developed in collaboration with national education and law enforcement authorities, including the FBI. Trained counselors, with access to translators for 140 languages, collect information from callers and then report the threat to appropriate school and law enforcement officials.[154][155]

Gun safety parent counselingEdit

One of the most widely used parent counseling programs is Steps to Prevent Firearm Injury program (STOP), which was developed in 1994 by the Brady Center to Prevent Gun Violence.[150] STOP was superseded by STOP 2 in 1998, which has a broader focus including more communities and health care providers.[150] STOP has been evaluated and found not to have a significant effect on gun ownership or firearm storage practices by inner-city parents.[156] Marjorie S. Hardy suggests further evaluation of STOP is needed, as this evaluation had a limited sample size and lacked a control group.[150]


Prevention programs geared towards children have also not been greatly successful.[150] Many inherent challenges arise when working with children, including their tendency to perceive themselves as invulnerable to injury,[157] limited ability to apply lessons learned,[158][159] their innate curiosity,[158] and peer pressure.

The goal of gun safety programs, usually administered by local firearms dealers and shooting clubs, is to teach older children and adolescents how to handle firearms safely.[150] There has been no systematic evaluation of the effect of these programs on children.[150] For adults, no positive effect on gun storage practices has been found as a result of these programs.[160][161] Also, researchers have found that gun safety programs for children may likely increase a child's interest in obtaining and using guns, which they cannot be expected to use safely all the time, even with training.[162]

One approach taken is gun avoidance, such as when encountering a firearm at a neighbor's home. The Eddie Eagle Gun Safety Program, administered by the National Rifle Association (NRA), is geared towards younger children from pre-kindergarten to sixth grade, and teaches kids that real guns are not toys by emphasizing a "just say no" approach.[150] The Eddie Eagle program is based on training children in a four-step action to take when they see a firearm: (1) Stop! (2) Don't touch! (3) Leave the area. (4) Go tell an adult. Materials, such as coloring books and posters, back the lessons up and provide the repetition necessary in any child-education program. The ineffectiveness of the "just say no" approach promoted by the NRA's Eddie the Eagle program was highlighted in an investigative piece by ABC's Diane Sawyer in 1999.[163] Sawyer's piece was based on academic studies conducted by Dr. Marjorie Hardy, assistant professor of psychology at Muhlenberg College in Allentown, Pennsylvania.[164] Dr. Hardy's study tracked the behavior of elementary age schoolchildren who spent a day learning the Eddie the Eagle four-step action plan from a uniformed police officer. The children were then placed into a playroom which contained a hidden gun. When the children found the gun, they did not run away from the gun, but rather, they inevitably played with it, pulled the trigger while looking into the barrel, or aimed the gun at a playmate and pulled the trigger. The study concluded that children's natural curiosity was far more powerful than the parental admonition to "Just say no".[165]

Eddie Eagle ProgramEdit

The Eddie Eagle program and its namesake character were developed by the National Rifle Association for children who are generally considered too young to be allowed to handle firearms. While maturity levels vary, the Eddie Eagle program is intended for children of any age from pre-school through third grade. The program trains children to avoid causing harm when they encounter firearms, through an easily-remembered litany:

  • Stop — to take time to remember the rest of the instructions.
  • Don't touch — A firearm that is not touched or acted upon by an outside force is highly unlikely to fire, or endanger a person.
  • Leave the area — By leaving the area the child removes himself/herself from temptation, as well as from the danger that another person might pick up the gun and negligently cause it to fire.
  • Tell an adult — An adult, if not personally trained in handling firearms, should know enough to seek professional assistance.

The NRA, which also sponsors training for adults in safe gun-handling, developed this program in response to news stories about deaths and injuries of youths by negligent gunfire.

Some gun control advocacy groups have developed their own programs, such as Straight Talk about Risks (STAR), administered by the Brady Center to Prevent Gun Violence, and Hands without Guns, run by the Joshua Horwitz Educational Fund to End Handgun Violence.[150]

Community programsEdit

Programs targeted at entire communities, such as community revitalization, after-school programs, and media campaigns, may be more effective in reducing the general level of violence that children are exposed to.[166][167] Community-based programs that have specifically targeted gun violence include Safe Kids/Healthy Neighborhoods Injury Prevention Program in New York City,[168][169] and Safe Homes and Havens in Chicago.[150] Evaluation of such community-based programs is difficult, due to many confounding factors and the multifaceted nature of such programs.[150]

Intervention programsEdit

Sociologist James D. Wright suggests that to convince inner-city youths not to carry guns "requires convincing them that they can survive in their neighborhood without being armed, that they can come and go in peace, that being unarmed will not cause them to be victimized, intimidated, or slain."[2] Intervention programs, such as CeaseFire Chicago, Operation Ceasefire in Boston and Project Exile in Richmond, Virginia during the 1990s, have been shown to be effective.[13][170] Other intervention strategies, such as gun "buy-back" programs have been demonstrated to be ineffective.[117]

Gun "buy-back" programsEdit

Gun "buy-back" programs are a strategy aimed at influencing the firearms market by taking guns "off the streets".[117] Gun "buy-back" programs have been shown to be ineffective,[171][172] with the National Academy of Sciences citing theory underlying these programs as "badly flawed."[117] Guns surrendered tend to be those least likely to be involved in crime, such as old, malfunctioning guns with little resale value, muzzleloading or other black-powder guns, antiques chambered for obsolete cartridges that are no longer commercially manufactured or sold, or guns that individuals inherit but have little value in possessing.[173] Other limitations of gun "buy-back" programs include the fact that it is relatively easy to obtain gun replacements, often of better guns than were relinquished in the "buy-back."[117] Also, the number of handguns used in crime (approximately 7,500 per year) is very small compared to the approximately 70 million handguns in the United States (i.e., 0.011%).[117]

"Gun Bounty" programs launched in several Florida cities have shown more promise. These programs involve cash rewards for anonymous tips about illegal weapons that lead to an arrest and a weapons charge. Since its inception May 2007, the Miami program led to 264 arrests, confiscation of 432 guns owned illegally and $2.2 million in drugs, as well as solved several murder and burglary cases.[174]

Operation CeasefireEdit

In 1995, Operation Ceasefire was established as a strategy for stemming the epidemic of youth gun violence in Boston. Violence was particularly concentrated in poor, inner-city neighborhoods including Roxbury, Dorchester, and Mattapan.[175] There were 22 youths (under the age of 24) killed in Boston in 1987, with that figure rising to 73 in 1990.[175] Operation Ceasefire entailed a problem-oriented policing approach, and focused on specific places that were crime hot spots—two strategies that when combined have been shown to be quite effective.[176][177][178] Particular focus was placed on two elements of the gun violence problem, including illicit gun trafficking[179] and gang violence.[175] Within two years of implementing Operation Ceasefire in Boston, the number of youth homicides dropped to ten, with only one handgun-related youth homicide occurring in 1999 and 2000.[3] The Operation Ceasefire strategy has since been replicated in other cities, including Los Angeles.[180]

Project ExileEdit


Federally supported gun violence intervention program

Project Exile, conducted in Richmond, Virginia during the 1990s, was a coordinated effort involving federal, state, and local officials that targeted gun violence. The strategy entailed prosecution of gun violations in Federal courts, where sentencing guidelines were tougher. Project Exile also involved outreach and education efforts through media campaigns, getting the message out about the crackdown.[181] Research analysts offered different opinions as to the program's success in reducing gun crime. Authors of a 2003 analysis of the program argued that the decline in gun homicide was part of a "general regression to the mean" across U.S. cities with high homicide rates.[182] Authors of a 2005 study disagreed, concluding that Richmond's gun homicide rate fell more rapidly than the rates in other large U.S. cities with other influences controlled.[181][183]

Project Safe NeighborhoodsEdit

Project Safe Neighborhoods (PSN) is a national strategy for reducing gun violence that builds on the strategies implemented in Operation Ceasefire and Project Exile.[184] PSN was established in 2001, with support from the Bush administration, channelled through the United States Attorney's Offices in the United States Department of Justice. The Federal government has spent over US$1.5 billion since the program's inception on the hiring of prosecutors, and providing assistance to state and local jurisdictions in support of training and community outreach efforts.[185][186]

Americans for Responsible SolutionsEdit

Americans for Responsible Solutions was started in January 2013 as a not-for-profit organization whose mission is to "encourage elected officials to stand up for solutions to prevent gun violence and protect responsible gun ownership by communicating directly with the constituents that elect them."[187] The organization was announced on January 8, 2013 by Gabrielle "Gabby" Giffords, a former Democratic member of the United States House of Representatives for Arizona's 8th congressional district, and Mark Kelly, a retired American astronaut.[188] In an op-ed published in USA Today, Gifford and Kelly referred to the NRA lobby and sought to counter it by creating a lobby dedicated to responsible gun control measures.[189]

Research limitationsEdit

In the United States, research into firearms and violent crime is fraught with difficulties, associated with limited data on gun ownership and use,[80] firearms markets, and aggregation of crime data.[13] Research studies into gun violence have primarily taken one of two approaches: case-control studies and social ecology.[13] Gun ownership is usually determined through surveys, proxy variables, and sometimes with production and import figures. In statistical analysis of homicides and other types of crime which are rare events, these data tend to have poisson distributions, which also presents methodological challenges to researchers. With data aggregation, it is difficult to make inferences about individual behavior.[190] This problem, known as ecological fallacy, is not always handled properly by researchers; this leads some to jump to conclusions that their data do not necessarily support.[191]

In 1996, the NRA persuaded Congressman Jay Dickey (R-Ark.) to successfully include budget provisions that prohibit the Centers for Disease Control (CDC) from advocating or promoting gun control, and that deleted $2.6 million from the CDC budget, the exact amount the CDC had spent on firearms research the previous year. The ban was later extended to all research funded by the Department of Health and Human Services. According to scientists in the field, this has made gun research more difficult, has reduced the number of studies, and has discouraged researchers from even talking about gun violence at medical and scientific conferences. In 2013, President Barack Obama ordered the CDC to resume funding research on gun violence and prevention, and put $10 million in the 2014 budget request for it.[192]

See alsoEdit

Notes and referencesEdit

  1. Bjerregaard, Beth, Alan J. Lizotte (1995). "Gun Ownership and Gang Membership". The Journal of Criminal Law and Criminology (1973-), Vol. 86, No. 1. pp. 37–58National Criminal Justice Reference Service 162688. Digital object identifier:10.2307/1143999. JSTOR 1143999. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Wright, James D., Joseph F. Sheley, and M. Dwayne Smith (1993). "Kids, Guns, and Killing Fields". 
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Rushefsky, Mark E. (2002). "Chapter 7: Criminal Justice: To Ensure Domestic Tranquility". Public Policy in the United States: At the Dawn of the Twenty-First Century. M.E. Sharpe. ISBN 0-7656-0647-X. 
  5. Homicides by firearms UNODC. Retrieved: 28 July 2012.
  6. "10 Leading Causes of Injury Death by Age Group Highlighting Violence-Related Injury Deaths, United States". National Vital Statistics System. National Center for Health Statistics, CDC. 2010. 
  7. Goode, Erica (25 December 2012). "Legal Curbs Said to Hamper A.T.F. in Gun Inquiries". Retrieved 11 February 2013. 
  8. Kenny, Daryn (3 January 2013). "Jared's Inculcation". Retrieved 11 February 2013. 
  9. Sun, Cay. "Jared's Inculcation". Retrieved 11 February 2013. 
  10. See main articles for more information and references
  11. "Gun control offers no cure-all in America - NBC Politics". 2012-10-24. Retrieved 2013-01-10. 
  12. "Census Bureau Projects U.S. Population of 305.5 Million on New Year's Day - Population - Newsroom - U.S. Census Bureau". Retrieved 2013-01-10. 
  13. 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 Committee on Law and Justice (2004). "Executive Summary". Firearms and Violence: A Critical Review. National Academy of Science. 
  14. Kellermann, A.L., F.P. Rivara, G. Somes, et al. (1992). "Suicide in the home in relation to gun ownership". pp. 467–472. Digital object identifier:10.1056/NEJM199208133270705. PMID 1308093. 
  15. Miller, Matthew and Hemenway, David (2001). Firearm Prevalence and the Risk of Suicide: A Review. Harvard Health Policy Review. p. 2. "One study found a statistically significant relationship between gun ownership levels and suicide rate across 14 developed nations (e.g. where survey data on gun ownership levels were available), but the association lost its statistical significance when additional countries were included." 
  16. 16.0 16.1 16.2 16.3 Cook, Philip J., Jens Ludwig (2000). "Chapter 2". Gun Violence: The Real Costs. Oxford University Press. ISBN 0-19-513793-0. 
  17. Ikeda, Robin M., Rachel Gorwitz, Stephen P. James, Kenneth E. Powell, James A. Mercy (1997). Fatal Firearm Injuries in the United States, 1962-1994: Violence Surveillance Summary Series, No. 3. National Center for Injury and Prevention Control. 
  18. "U.S.A. Suicide: 2006 Official Final Data". American Association of Suicidology. 
  19. 19.0 19.1 Kleck, Gary (2004). "Measures of Gun Ownership Levels of Macro-Level Crime and Violence Research". pp. 3–36National Criminal Justice Reference Service 203876. Digital object identifier:10.1177/0022427803256229. "Studies that attempt to link the gun ownership of individuals to their experiences as victims (e.g., Kellermann, et al. 1993) do not effectively determine how an individual's risk of victimization is affected by gun ownership by other people, especially those not living in the gun owner's own household." 
  20. 20.0 20.1 Lott, John, John E. Whitley (2001). "Safe-Storage Gun Laws: Accidental Deaths, Suicides, and Crime". pp. 659–689. Digital object identifier:10.1086/338346. "It is frequently assumed that safe-storage laws reduce accidental gun deaths and total suicides. We find no support that safe-storage laws reduce either juvenile accidental gun deaths or suicides." 
  22. "Homicide trends in the U.S. - Weapons used". Bureau of Justice Statistics. 
  23. 23.0 23.1 23.2 "Homicide trends in the U.S. - Age trends". Bureau of Justice Statistics. 
  24. Friedman, Lawrence M. (1993). "Chapter 8: Lawful Law and Lawless Law: Forms of American Violence". Crime and Punishment in American History. Basic Books. ISBN 0-465-01461-5. 
  25. Lane, Roger (1999). Violent Death in the City: Suicide, Accident, and Murder in Nineteenth-Century Philadelphia. Ohio State University Press. ISBN 0-8142-5021-1. 
  26. Federal Bureau of Investigation, "Guns are the weapon of choice", Associated Press, 2011.
  27. Fox, James Alan, Marianne W. Zawitz. "Homicide trends in the United States". Bureau of Justice Statistics. 
  28. 28.0 28.1 28.2 28.3 Committee on Law and Justice (2004). "Chapter 3". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  29. Cork, Daniel (1999). "Examining Time-Space Interaction in City-Level Homicide Data: Crack Markets and the Diffusion of Guns Among Youth". pp. 379–406. Digital object identifier:10.1023/A:1007540007803 National Criminal Justice Reference Service [// 180974]. 
  30. Grogger, Jeff, Mike Willis (1998). "The Introduction of Crack Cocaine and the Rise of Urban Crime Rates". National Bureau of Economic Research. 
  31. Blumstein, Alfred (1995). "Youth Violence, Guns and the Illicit-Drug Industry". The Journal of Criminal Law and Criminology (1973-), Vol. 86, No. 1. pp. 10–36. Digital object identifier:10.2307/1143998 National Criminal Justice Reference Service [// 162687]. JSTOR 1143998. 
  32. Krug, E.G, K.E. Powell, L.L. Dahlberg (1998). "Firearm-related deaths in the United States and 35 other high- and upper-middle income countries". pp. 214–221. Digital object identifier:10.1093/ije/27.2.214. PMID 9602401. 
  33. "The Seventh United Nations Survey on Crime Trends and the Operations of Criminal Justice Systems (1998-2000)". United Nations Office on Drugs and Crime. Archived from the original on 2007-11-12. Retrieved 2006-11-08. 
  34. Rogers, Heather. "Gun Control: An International Comparison". IVN. Retrieved 11 February 2013. 
  35. Kopel, David B (1993). "Japanese Gun Control". pp. 26–52. Retrieved 11 February 2013. 
  36. Adelstein, Jake (6 January 2013). "Even gangsters live in fear of Japan's gun laws". Retrieved 11 February 2013. 
  37. Fisher, Max (23 July 2012). "A Land Without Guns: How Japan Has Virtually Eliminated Shooting Deaths". Retrieved 11 February 2013. 
  38. "Crime in the United States by Community Type". Federal Bureau of Investigation. 2005. Archived from the original on 2006-09-20. 
  39. "Rate: Number of Crimes per 100,000 Inhabitants by Population Group". Federal Bureau of Investigation. 2005. Archived from the original on 2006-09-20. 
  40. "Murder, Types of Weapons Used Percent Distribution within Region". Federal Bureau of Investigation. 2005. 
  41. Butts, Jeffrey A., Howard N. Snyder (November 2006). "Too Soon to Tell: Deciphering Recent Trends in Youth Violence". Chapin Hall Center for Children, University of Chicago. 
  42. 42.0 42.1 "American Fact Finder". United States Census Bureau. 
  43. 43.0 43.1 43.2 "Expanded Homicide Data Table 3, Murder Victims by Age by Weapon". 2005. Archived from the original on 2006-09-20. 
  44. 44.0 44.1 44.2 "Expanded Homicide Data Table 3, Murder Offenders by Age, Sex, and Race". 2005. Archived from the original on 2006-09-20. 
  45. Kennedy, David M., Anne M. Piehl, Anthony A. Braga (1996). "Youth Violence in Boston: Gun Markets, Serious Youth Offenders, and a Use-Reduction Strategy". Law and Contemporary Problems, Vol. 59, No. 1. pp. 147–183National Criminal Justice Reference Service 162687. Digital object identifier:10.2307/1192213. JSTOR 1192213. 
  46. McGonigal, Michael D., John Cole, C. William Schwab, Donald R. Kauder, Michael F. Rotondo, Peter B. Angood (199). "Urban Firearm Deaths: A Five-Year Perspective". pp. 532–536. Digital object identifier:10.1097/00005373-199310000-00006. PMID 8411275. 
  47. McLaughlin, Colleen R., Jack Daniel, Scott M. Riener, Dennis E. Waite, et al.. "Factors Associated with Assault-Related Firearm Injuries in Male Adolescents". Virginia Department of Juvenile Justice. 
  48. "Expanded Homicide Data Table 7 - Murder Victims by Weapon". Federal Bureau of Investigation. 2001–2005. Archived from the original on 2010-04-12. 
  49. Cook, Philip J., Mark H. Moore (1995). "Gun Control". In Wilson, James Q., Joan Petersilia. Crime. Institute of Contemporary Studies Press. 
  50. Asensio J.A., J. Murray, D. Demetriades, et al. (1998). "Penetrating cardiac injuries: A prospective study of variables predicting outcome". pp. 24–34. Digital object identifier:10.1016/S1072-7515(97)00144-0. PMID 9449597. 
  51. United Nations Office on Drugs and Crime: Homicides by firearm statistics. Total 2009 firearms homicides for the UK are given as 41, which equates to 0.07 per 100,000 of the 62 million inhabitants (this figure is rounded to one decimal place in the table, i.e. 0.1. The figure without rounding error is 0.07).
  52. 52.0 52.1 [1]
  53. Parker, Kathleen (September 19, 2013). "Here we go again: After another mass shooting we have same debate". Melbourne, Florida. pp. 9A. Retrieved September 19, 2013. 
  54. Gienapp, William E (2002). Abraham Lincoln and Civil War America. Oxford University Press. ISBN 978-0-19-515100-8. 
  55. 55.0 55.1 Koller, Larry (1957). Handguns. Random House. p. 4. 
  56. Report of the President's Commission on the Assassination of President Kennedy, Chapter 4
  57. Ward, John William (1962). Andrew Jackson. Oxford University Press. p. 114. ISBN 0-19-500699-2. 
  58. Donovan, Robert J. (1996). Tumultuous Years. University of Missouri Press. p. 291. ISBN 0-393-01619-6. 
  59. Winget, Mary Mueller (2007). Gerald R. Ford. Twenty-First Century Books. p. 86. ISBN 0-8225-1509-1. 
  60. "Ronald Reagan's Life, 1979-1982". PBS. Retrieved 2008-01-14. 
  61. Miller, Nathan (1993). Theodore Roosevelt. HarperCollins. p. 530. ISBN 0-688-06784-0. 
  62. "Franklin D. Roosevelt Assassination Attempt - FBI Freedom of Information Act Files - Miami Public Pages". Retrieved 2013-01-10. 
  63. 63.0 63.1 Cook, Philip J. (1987 National Criminal Justice Reference Service 108118). "Robbery Violence". 
  64. Kleck, Gary, K. McElrath (1991 National Criminal Justice Reference Service 134329). "The Effects of Weaponry on Human Violence". Social Forces, Vol. 69, No. 3. pp. 669–692. Digital object identifier:10.2307/2579469. JSTOR 2579469. 
  65. 65.0 65.1 Zimring, Franklin E. (1972). "The Medium is the Message: Firearm Caliber as a Determinant of Death from Assault". pp. 97–123 National Criminal Justice Reference Service 47874. Digital object identifier:10.1086/467479. 
  66. Saltzman, L., J.A. Mercy, et al. (1992). "Weapon Involvement and Injury Outcomes in Family and Intimate Assaults". pp. 3043–3047. Digital object identifier:10.1001/jama.267.22.3043. PMID 1588718. 
  67. 67.0 67.1 67.2 67.3 67.4 67.5 67.6 67.7 67.8 Cook, Philip J., Jens Ludwig (2000). "Chapter 3". Gun Violence: The Real Costs. Oxford University Press. ISBN 0-19-513793-0. 
  68. Cook, Philip J. (1979). "The Effect of Gun Availability on Robbery and Robbery Murder: A Cross-Section Study of Fifty Cities". pp. 743–781. 
  69. Kleck, Gary (1997). Targeting guns: Firearms and their control. Aldine de Gruyter. ISBN 0-202-30569-4. 
  70. 70.0 70.1 Zimring, Franklin E., Gordon Hawkins (1997). Crime Is Not the Problem: Lethal Violence in America. Oxford University Press. ISBN 0-19-513105-3. 
  71. "Gun Ownership: Two in Five Americans Live in Gun-Owning Households". Harris Interactive. Retrieved 2006-11-08. 
  72. P.J. Cook and J. Ludwig, Guns in America: Results of a Comprehensive National Survey on Firearms Ownership and Use, Summary Report, Washington, DC: Police Foundation, 1997.
  73. 73.0 73.1 73.2 General Social Survey. "GSS Cumulative Data Set (1972-2004)". 
  74. 74.0 74.1 "National Survey on Private Ownership and Use of Firearms". National Institute of Justice. May 1997. 
  75. Lach, Eric. "A History of the Rifle used in the Sandy Hook Massacre". TPM. Retrieved 11 February 2013. 
  76. Isikoff, Michael. "Authorities establish timeline of gun purchases in Connecticut school shooting". NBC NEWS. 
  77. McDaniel, Chris. "Yuma gun show draws big crowd". 
  78. Gross, Daniel. "This Gun Kills Kids -- and Reaps Profits". The Daily Beast. 
  79. Kopel, Dave. "The AR-15 and the Second Amendment: No Respoect". NRA. 
  80. 80.0 80.1 Azrael, Deborah, Philip J. Cook, Matthew Miller (2004). "State and Local Prevalence of Firearms Ownership Measurement, Structure, and Trends". pp. 43–62 National Criminal Justice Reference Service 205033. Digital object identifier:10.1023/B:JOQC.0000016699.11995.c7. 
  81. 81.0 81.1 81.2 Carlson, Darren K.. "Americans and Guns: Danger or Defense?". 2004 Poll report. Gallup. Retrieved 23 December 2012. 
  82. 82.0 82.1 Travis, Jeremy (May 1997). "Guns in America: National Survey on Private Ownership and Use of Firearms.". 
  83. 83.0 83.1 83.2 83.3 83.4 83.5 83.6 83.7 83.8 83.9 McDowall, David, Brian Wiersema (1994). "The Incidence of Defensive Firearm Use by US Crime Victims, 1987 through 1990". pp. 1982–1984. Digital object identifier:10.2105/AJPH.84.12.1982. PMC 1615397. PMID 7998641. 
  84. Uniform Crime Reports, 1987-1990. Federal Bureau of Investigation. 
  85. 85.0 85.1 LaPierre, Wayne (1994). Guns, Crime, and Freedom. Regnery Publishing. p. 23. ISBN 0-89526-477-3. 
  86. Suter, E.A. (1992). "Firearms and the killing threshold (Letter)". p. 1159. Digital object identifier:10.1056/NEJM199204233261712. PMID 1552925. 
  87. Kates, D.B. (1991). "The value of civilian handgun possession as a deterrent to crime or a defense against crime". pp. 113–167 National Criminal Justice Reference Service 132948. 
  88. "Go ahead, make our day". The New Republic. February 22, 1988. pp. 7–9. 
  89. "Do guns save lives?". Time Magazine. August 12, 1988. pp. 25–26. 
  90. "Are we "a nation of cowards"?". Newsweek. November 15, 1993. pp. 93–94. 
  91. Kopel, D.B. (1993). "Hold your fire: gun control won't stop rising violence". Policy Review. pp. 58–65 National Criminal Justice Reference Service 153748. 
  92. Edgar A. Suter, MD. "Guns in the Medical Literature - A Failure of Peer Review". 
  93. [2] Kleck and Gertz; Gertz, Marc (1995). "Armed resistance to crime". The Journal of Criminal Law and Criminology (1973-), Vol. 86, No. 1. pp. 150–187 [162]. Digital object identifier:10.2307/1144004. JSTOR 1144004. 
  94. 94.0 94.1 Hemenway, D., D. Azrael, M. Miller (2000). "Gun use in the United States: results from two national surveys". pp. 263–267. Digital object identifier:10.1136/ip.6.4.263. PMC 1730664. PMID 11144624. 
  95. Hemenway, D. (1997). "The Myth of Millions of Self-Defense Gun Uses". 
  96. [3] Kleck and Gertz; Gertz, Marc (1995). "THE ILLEGITIMACY OF ONE-SIDED SPECULATION: GETTING THE DEFENSIVE GUN USE ESTIMATE DOWN". The Journal of Criminal Law and Criminology (1973-), Vol. 87, No. 1. 
  97. 97.0 97.1 Miller, M.; Hemenway, D., Azrael D. (2007). "State-level homicide victimization rates in the US in relation to survey measures of household firearm ownership, 2001-2003". pp. 656–664. 
  98. "Library of Congress Record". Library of Congress. 
  99. Barnes, Robert (2009-10-01). "Justices to Decide if State Gun Laws Violate Rights". Retrieved 2010-02-19. "the 5 to 4 opinion in District of Columbia v. Heller did not address the question of whether the Second Amendment extends beyond the federal government and federal enclaves such as Washington." 
  100. Kassirer, Jerome P. (1991). "Firearms and the killing threshold. (Editorial)". pp. 1647–1651. Digital object identifier:10.1056/NEJM199112053252311. PMID 1944455. 
  101. Baker, James Jay (July 1992). "Second amendment message in Los Angeles". pp. 32–34. 
  102. Miguel A. Faria, Jr., MD. "The Second Amendment - Reaching a Consensus as an Individual Right". 
  103. Miguel A. Faria, Jr., MD. "Guns and Violence". 
  104. 104.0 104.1 LaPierre, Wayne (1994). Guns, Crime, and Freedom. Regnery Publishing. p. 58. ISBN 0-89526-477-3. 
  105. James D. Wright and Peter H. Rossi (1986). ARMED AND CONSIDERED DANGEROUS: A Survey of Felons and their Firearms. Aldine de Gruyter. ISBN 0-202-30543-0. 
  106. Cohen, Jacqueline, Wilpen Gorr, Piyusha Singh (December 2002). "Guns and Youth Violence: An Examination of Crime Guns in One City". National Institute of Justice/Carnegie Mellon University. 
  107. 107.0 107.1 Wright, M.A., G.J. Wintemute, B E Claire (2005). "People and guns involved in denied and completed handgun sales". pp. 247–250. Digital object identifier:10.1136/ip.2005.008482. PMC 1730243. PMID 16081756. 
  108. 108.0 108.1 Lizotte, Alan J., Gregory J. Howard, Marvin D. Krohn, Terence P. Thornberry (1997). "Patterns of Illegal Gun Carrying Among Urban Young Males". 
  109. "Federal Firearm Offenders, 1992-98". Bureau of Justice Statistics. 
  110. 110.0 110.1 Cook, Philip J., S.Molliconi, T.B. Cole (1995). "Regulating Gun Markets". The Journal of Criminal Law and Criminology (1973-), Vol. 86, No. 1. pp. 59–92 National Criminal Justice Reference Service 162689. Digital object identifier:10.2307/1144000. JSTOR 1144000. 
  111. Cook, Philip J., Jens Ludwig (1996). Guns in America: Results of a Comprehensive Survey of Gun Ownership and Use. Police Foundation. 
  112. Wright, James D., Peter H. Rossi (1994). Armed and Considered Dangerous: A Survey of Felons and Their Firearms. Aldine de Gruyter. ISBN 0-202-30543-0. 
  113. Ash, Peter, Arthur L. Kellermann, et al. (1996). "Gun Acquisition and Use by Juvenile Offenders". pp. 1754–1758. Digital object identifier:10.1001/jama.275.22.1754. PMID 8637174. 
  114. Cook, Philip J., Jens Ludwig (2000). "Chapter 9". Gun Violence: The Real Costs. Oxford University Press. ISBN 0-19-513793-0. 
  115. Boston T. Party (Kenneth W. Royce) (1998). Boston on Guns & Courage. Javelin Press. pp. 3:15. ISBN 1-888766-04-2. 
  116. Weil, Douglas S., Rebecca C. Knox (1996). "Effects of Limiting Handgun Purchases on Interstate Transfer of Firearms". pp. 1759–1761. Digital object identifier:10.1001/jama.275.22.1759. PMID 8637175. 
  117. 117.0 117.1 117.2 117.3 117.4 117.5 117.6 117.7 117.8 117.9 Committee on Law and Justice (2004). "Chapter 4". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  118. 118.0 118.1 Butterfield, Fox (July 1, 1999). "Gun Flows to Criminals Laid to Tiny Fraction of Dealers". The New York Times. 
  119. 119.0 119.1 "Youth Crime Gun Interdiction Initiative (1998)". Bureau of Alcohol, Tobacco, Firearms and Explosives. 
  120. 120.0 120.1 Cook, Philip J., Anthony A. Braga (2001). "Comprehensive firearms tracing: Strategic and investigative uses of new data on firearms markets". pp. 277–309. 
  121. Kennedy, D.M., A.A. Braga, A.M. Piehl (1996). "Youth violence in Boston: Gun markets, serious youth offenders, and a use-reduction strategy". Law and Contemporary Problems, Vol. 59, No. 1. pp. 147–196 National Criminal Justice Reference Service 169549. Digital object identifier:10.2307/1192213. JSTOR 1192213. 
  122. Wachtel, J. (1998). "Sources of crime guns in Los Angeles, California". pp. 220–239 National Criminal Justice Reference Service 174254. Digital object identifier:10.1108/13639519810220127. 
  123. Pierce, G.L., A.A. Braga, C. Koper, J. McDevitt, D. Carlson, J. Roth, A. Saiz (2001). The Characteristics and Dynamics of Gun Markets: Implications for a Supply-Side Enforcement Strategy (Final Report). Center for Criminal Justice Policy Research, Northeastern University and the National Institute of Justice. 
  124. Friedman, Lawrence M. (1993). Crime and Punishment in American History. Basic Books. p. 267. ISBN 0-465-01461-5. 
  125. Cook, Philip J., James Blose (1981). "State Programs for Screening Handgun Buyers". pp. 80–91 National Criminal Justice Reference Service 79101. Digital object identifier:10.1177/000271628145500108. 
  126. The background check provision has been challenged on grounds that it violates the Tenth Amendment of the Constitution. In the 1997 case, Printz v. United States, the Supreme Court voided that part of the Brady Act. (Rushefsky, 2002)
  127. "Brady Handgun Violence Prevention Act". Congress of the United States/Government Printing Office. 
  128. 128.0 128.1 Emerald: Article Request
  129. 129.0 129.1 Roth, Jeffrey A., Christopher S. Koper (1999). Impacts of the 1994 Assault Weapons Ban: 1994–96. National Institute of Justice. 
  130. Koper, Christopher S., Jeffrey A. Roth (2001). "The impact of the 1994 federal assault weapon ban on gun markets: An assessment of short-term primary and secondary market effects". pp. 239–266 National Criminal Justice Reference Service 196844. Digital object identifier:10.1023/A:1016055919939. 
  131. Lawrence, Jill (September 12, 2004). "Federal ban on assault weapons expires". USA Today. 
  132. This was ex post facto, in the opinion of Representative Bob Barr.[4] House of Representatives, Subcommittee on Crime, Committee on the Judiciary, March 5, 1997
  133. "Domestic Violence Offender Gun Ban Fact Sheet" (asp). National Center for Women & Policing. Retrieved 2007-02-05. 
  134. "House Report 109-699 - Making Appropriations For The Department Of Homeland Security For The Fiscal Year Ending September 30, 2007, And For Other Purposes". The Library of Congress - THOMAS Home - Bills, Resolutions. 
  135. "Guns in America, Part II". San Antonio Express-News. Retrieved 2006-11-15. [dead link]
  136. LaPierre, Wayne (1994). Guns, Crime, and Freedom. Regnery Publishing. p. 98. ISBN 0-89526-477-3. 
  137. Boston T. Party (Kenneth W. Royce) (1998). "Chapter 3". Boston on Guns & Courage. Javelin Press. pp. 3:15. ISBN 1-888766-04-2. 
  138. "'Conceal and carry' begins in Wisconsin". KARE. November 1, 2011. 
  139. Lott, Jr., John R., David B. Mustard (1997). "Crime, Deterrence, and Right-to-Carry Concealed Handguns". pp. 1–68 National Criminal Justice Reference Service 174718. Digital object identifier:10.1086/467988. 
  140. 140.0 140.1 Black, Dan, Daniel Nagin (1998 National Criminal Justice Reference Service 177169). "Do 'Right to Carry' Laws Reduce Violent Crime?". pp. 209–219. Digital object identifier:10.1086/468019. 
  141. Ludwig, Jens (1998). "Concealed-Gun-Carrying Laws and Violent Crime: Evidence from State Panel Data". pp. 239–254. Digital object identifier:10.1016/S0144-8188(98)00012-X. 
  142. Committee on Law and Justice (2004). "Chapter 6". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  143. 143.0 143.1 143.2 143.3 143.4 DeSimone, Jeff, Sara Markowitz (September 2005). "The Effect of Child Access Prevention Laws on Non-Fatal Gun Injuries". NBER Working Paper No. 11613. National Bureau of Economic Research. 
  144. "Boy finds forgotten gun, accidentally shoots self in head". CNN. April 21, 2009. "" 
  145. Cummings, Peter, David C. Grossman, Frederick P. Rivara, Thomas D. Koepsell (1997). "State Gun Safe Storage Laws and Child Mortality Due to Firearms". pp. 1084–1086. Digital object identifier:10.1001/jama.278.13.1084. PMID 9315767. 
  146. Webster, Daniel, John Vernick, et al. (2004). "Association between Youth-Focused Firearm Laws and Youth Suicides". pp. 594–601. Digital object identifier:10.1001/jama.292.5.594. PMID 15292085. 
  147. Webster, D.W., M. Starnes (2000). "Reexamining the association between child access prevention gun laws and unintentional shooting deaths of children". pp. 1466–1469. Digital object identifier:10.1542/peds.106.6.1466. PMID 11099605. 
  148. "Federal Appeals Court Strikes Down D.C. Handgun Ban" Bloomberg News, March 9, 2007
  149. Wintemute, Garen (2000). "Guns and Gun Violence". In Blumstein, Alfred, Joel Wallman. The Crime Drop in America. Cambridge University Press. 
  150. 150.00 150.01 150.02 150.03 150.04 150.05 150.06 150.07 150.08 150.09 150.10 150.11 150.12 150.13 Hardy, Marjorie S. (2002). "Behavior-Oriented Approaches to Reducing Gun Violence". Woodrow Wilson School / The Brookings Institution. pp. 101–118 National Criminal Justice Reference Service 196785. 
  151. Christophersen, E.R. (1993). "Improving compliance in childhood injury control". Developmental aspects of health compliance behavior. Lawrence Erlbaum Associates. pp. 219–231. 
  152. Williams, A.F.; Farrell, RJ; Kelly, CP (1982). "Passive and active measures for controlling disease and injury". pp. 399–409. Digital object identifier:10.1037/h0090242. PMID 11586556. 
  153. "The Center to Prevent Youth Violence". Retrieved 29 August 2011. 
  154. [5][dead link]
  155. "What is SPEAK UP?". Retrieved 29 August 2011. [dead link]
  156. Oatis, Pamela J., Nancy M. Fenn Buderer, Peter Cummings, Rosemarie Fleitz (1999). "Pediatric practice based evaluation of the Steps to Prevent Firearm Injury program". pp. 48–52. Digital object identifier:10.1136/ip.5.1.48. PMC 1730460. PMID 10323570. 
  157. Benthin, A., P. Slovic, H. Severan (1993). "A psychometric study of adolescent risk perception". pp. 153–168. Digital object identifier:10.1006/jado.1993.1014. PMID 8376640. 
  158. 158.0 158.1 Hyson, M.C., G.G. Bollin (1990). "Children's appraisal of home and neighborhood risks: Questions for the 1990s". pp. 50–60. 
  159. Coppens, N.M. (1985). "Cognitive development and locus of control as predictors of preschoolers' understanding of safety and prevention". pp. 43–55. Digital object identifier:10.1016/0193-3973(85)90015-2. 
  160. Cook, P.J., J. Ludwig (May 1997). "Guns in America: National survey on private ownership and use of firearms". National Institute of Justice. 
  161. Hemenway, D., S. Solnek, D.R. Azrael (1995). "Firearm training and storage". pp. 46–50. Digital object identifier:10.1001/jama.273.1.46. PMID 7996649. 
  162. Wilson, M.H., S.P. Baker, S.P. Teret, et al. (1991). Saving children: A guide to injury prevention. Oxford University Press. 
  163. Sawyer, Diane (21 May 1999). "20/20 Classic: Kids and Guns". Retrieved 28 July 2012. 
  164. Holman, Virginia. "Is There a Gun in the House?". Parents Magazine. Retrieved 28 July 2012. 
  165. Patten, Peggy (2000). "Saying No to Guns: It’s Not Enough. An Interview with Marjorie Hardy". 
  166. Group for the Advancement of Psychiatry, Committee on Preventative Psychiatry (1999). "Violent behavior in children and youth: Preventative intervention from a psychiatric perspective". pp. 235–241. Digital object identifier:10.1097/00004583-199903000-00008. 
  167. Arrendondo, S., T. Aultman-Bettride, T.P. Johnson, et al. (1999). Preventing youth handgun violence: A national study with trends and patterns for the state of Colorado. Center for the Study and Prevention of Violence. 
  168. Davidson, L.L., M S Durkin, L Kuhn, P O'Connor, B Barlow, M C Heagarty (1994). "The impact of the Safe Kids/Healthy Neighborhoods Injury Prevention Program in Harlem, 1988 through 1991". pp. 580–586. Digital object identifier:10.2105/AJPH.84.4.580. PMC 1614780. PMID 8154560. 
  169. Klassen, T.P., I.M. MacKay, A.W. Moher, A. I. Jones (2000). "Community-based prevention interventions". The Future of Children, Vol. 10, No. 1. pp. 83–110. Digital object identifier:10.2307/1602826. JSTOR 1602826. 
  170. Braga, Anthony A., David M. Kennedy, Elin J. Waring, Anne M. Piehl (2001 National Criminal Justice Reference Service 189562). "Problem-Oriented Policing, Deterrence, and Youth Violence: An Evaluation of Boston's Operation Ceasefire". 
  171. Callahan, C.M., F.P. Rivara, T.D. Koepsell (1994). "Money for guns: Evaluation of the Seattle gun "buy-back" program". pp. 472–477. PMC 1403522. PMID 8041845. 
  172. Rosenfeld, R. (1996). "Gun buy-backs: Crime control or community mobilization?". In M.R. Plotkin. Under Fire: Gun Buy-Backs, Exchanges, and Amnesty Programs. Police Executive Research Forum National Criminal Justice Reference Service 161877. 
  173. Kennedy, David M., Anne M. Piehl, Anthony A. Braga (1996). "Gun buy-backs: Where do we stand and where do we go?". In M.R. Plotkin. Under Fire: Gun Buy-Backs, Exchanges, and Amnesty Programs. Police Executive Research Forum National Criminal Justice Reference Service 161877. 
  174. "County Gun Buy Back Program Touted as a Success". 2010-05-26. Retrieved June 1, 2010. 
  175. 175.0 175.1 175.2 Kennedy, David M., Anthony A. Braga, Anne M. Piehl (2001). Reducing Gun Violence: The Boston Gun Project's Operation Ceasefire. 
  176. Braga, Anthony A., David L. Weisburd, et al. (1999). "Problem-oriented policing in violent crime places: A randomized controlled experiment". pp. 541–580 National Criminal Justice Reference Service 178770. Digital object identifier:10.1111/j.1745-9125.1999.tb00496.x. 
  177. Weisburd, D., L. Green (1995). "Policing drug hot spots: The Jersey City drug market analysis experiment". pp. 711–735 National Criminal Justice Reference Service 167667. Digital object identifier:10.1080/07418829500096261. 
  178. Sherman, L.W., D. Rogan (1995). "Effects of gun seizures on gun violence: "Hot spots" patrol in Kansas City". pp. 673–694 National Criminal Justice Reference Service 167665. Digital object identifier:10.1080/07418829500096241. 
  179. Braga, Anthony A., Glenn L. Pierce (2005 National Criminal Justice Reference Service 212303). "Disrupting Illegal Firearms Markets in Boston: The Effects of Operation Ceasefire on the Supply of New Handguns to Criminals". 
  180. National Institute of Justice (February 2005). Research Report: Reducing Gun Violence - Operation Ceasefire in Los Angeles. 
  181. 181.0 181.1 Raphael, Stephen, Jens Ludwig (2003 National Criminal Justice Reference Service 203345). "Prison Sentence Enhancements: The Case of Project Exile". In Ludwig, Jens, Philip I. Cook. Evaluating Gun Policy: Effects on Crime and Violence. Brookings Institution Press. 
  182. Prison Sentence Enhancements: The Case of Project Exile, in Evaluating Gun Policy by Jens Ludwig and Steven Raphael 251 (2003)
  183. Did Ceasefire, Compstat, and Exile Reduce Homicide? by Richard Rosenfeld 4 Crimonology & Pub. Pol'y 419 (2005)
  184. U.S. Department of Justice (May 13, 2003). "Project Safe Neighborhoods - Fact Sheet". 
  185. "Project Safe Neighborhoods: FAQs". U.S. Department of Justice. 
  186. Committee on Law and Justice (2004). "Chapter 9". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  187. "'Enough,' Says Giffords As She Launches Campaign For New Gun Laws". NPR. Retrieved 22 January 2013. 
  188. "Giffords and Kelly: Fighting Gun Violence". USA Today. Retrieved 9 January 2013. 
  189. "Une ex-élue du congrès américain, rescapée d'une fusillade, face au lobby des armes à feu". Libération. 8 January 2013. Retrieved 9 January 2013.  (French)
  190. Committee on Law and Justice (2004). "Chapter 1". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  191. Committee on Law and Justice (2004). "Chapter 2". Firearms and Violence: A Critical Review. National Academy of Science. ISBN 0-309-09124-1. 
  192. Firearms research: The gun fighter, Meredith Wadman, Nature, 24 April 2013

External linksEdit

This page uses Creative Commons Licensed content from Wikipedia (view authors).
Community content is available under CC-BY-SA unless otherwise noted.