Gun control is bad

1) America has six times as many firearm homicides as Canada, and nearly 16 times as many as Germany

Javier Zarracina/VoxThis chart, compiled using 2012 United Nations data collected by Simon Rogers for the Guardian, shows that America far and away leads other developed countries when it comes to gun-related homicides. Why? Extensive reviews of the research, compiled by the Harvard School of Public Health’s Injury Control Research Center, suggest the answer is pretty simple: The US is an outlier on gun violence because it has way more guns than other developed nations.

3) There have been more than 2,500 mass shootings since Sandy Hook

Kavya Sukumar/VoxIn December 2012, a gunman walked into Sandy Hook Elementary School in Newtown, Connecticut, and killed 20 children, six adults, and himself. Since then, there have been more than 2,500 mass shootings as of July 2020.

The number comes from the Gun Violence Archive, which hosts a database that has tracked mass shootings since 2013. But since some shootings go unreported, the database is likely missing some, as well as the details of some of the events.

The tracker uses a fairly broad definition of “mass shooting”: It includes not just shootings in which four or more people were murdered, but shootings in which four or more people were shot at all (excluding the shooter).

Even under this broad definition, it’s worth noting that mass shootings make up less than 2 percent of America’s firearm deaths, which totaled nearly 40,000 in 2017 alone.

4) On average, there is around one mass shooting for each day in America

Christopher Ingraham pointed out at the Washington Post in 2015. Under the broader definition of mass shootings, America has around one mass shooting a day.

5) States with more guns have more gun deaths

Mother JonesUsing data from a 2016 study in Injury Prevention and the Centers for Disease Control and Prevention, Mother Jones put together the chart above that shows states with more guns tend to have far more gun deaths, including homicides and suicides. This has been found across the empirical research: “Within the United States, a wide array of empirical evidence indicates that more guns in a community leads to more homicide,” David Hemenway, the Harvard Injury Control Research Center’s director, wrote in Private Guns, Public Health.

6) It’s not just the US: Developed countries with more guns also have more gun deaths

America is only an outlier when it comes to homicides and, specifically, gun violence, based on 2000 data from Jeffrey Swanson at Duke University.

As Zack Beauchamp explained for Vox, a breakthrough analysis in the 1990s by UC Berkeley’s Franklin Zimring and Gordon Hawkins found that the US does not, contrary to the old conventional wisdom, have more crime in general than other Western industrial nations. Instead, the US appears to have more lethal violence — and that’s driven in large part by the prevalence of guns.

“A series of specific comparisons of the death rates from property crime and assault in New York City and London show how enormous differences in death risk can be explained even while general patterns are similar,” Zimring and Hawkins wrote. “A preference for crimes of personal force and the willingness and ability to use guns in robbery make similar levels of property crime 54 times as deadly in New York City as in London.”

8) States with tighter gun control laws have fewer gun-related deaths

Zara Matheson/Martin Prosperity InstituteWhen economist Richard Florida took a look at gun deaths and other social indicators in 2011, he found that higher populations, more stress, more immigrants, and more mental illness didn’t correlate with more gun deaths. But he did find one telling correlation: States with tighter gun control laws have fewer gun-related deaths. (Read more in Florida’s “The Geography of Gun Deaths.”)

This is backed by other research: A 2016 review of 130 studies in 10 countries, published in Epidemiologic Reviews, found that new legal restrictions on owning and purchasing guns tended to be followed by a drop in gun violence — a strong indicator that restricting access to guns can save lives.

9) Still, gun homicides (like all homicides) have declined over the past couple of decades

The good news is that firearm homicides, like all homicides and crime, have declined over the past several decades.

One theory that researchers have widely debunked is the idea that more guns have deterred crime — in fact, the opposite may be true, based on research compiled by the Harvard School of Public Health’s Injury Control Center.

10) Most gun deaths are suicides

Although America’s political debate about guns tends to focus on grisly mass shootings and murders, a majority of gun-related deaths in the US are suicides. As Dylan Matthews explained for Vox, this is actually one of the most compelling reasons for reducing access to guns: There is a lot of research that shows greater access to guns dramatically increases the risk of suicide.

12) Guns allow people to kill themselves much more easily

Estelle Caswell/VoxPerhaps the key reason access to guns so strongly contributes to suicides is that guns are much deadlier than alternatives like cutting and poison.

Jill Harkavy-Friedman, vice president of research for the American Foundation for Suicide Prevention, previously explained that this is why reducing access to guns can be so important to preventing suicides: Just stalling an attempt or making it less likely to result in death makes a huge difference.

13) Policies that limit access to guns have decreased suicides

Estelle Caswell/VoxWhen countries reduced access to guns, they saw a drop in the number of firearm suicides. The data above, taken from a 2010 study by Australian researchers, shows that suicides dropped dramatically after the Australian government set up a mandatory gun buyback program that reduced the number of firearms in the country by about one-fifth.

The Australian study found that buying back 3,500 guns per 100,000 people correlated with up to a 50 percent drop in firearm homicides and a 74 percent drop in gun suicides. As Dylan Matthews explained for Vox, the drop in homicides wasn’t statistically significant (in large part because murders in Australia were already so low). But the drop in suicides definitely was — and the results are striking.

Australia is far from alone in these types of results. A study from Israeli researchers found that suicides among Israeli soldiers dropped by 40 percent when the military stopped letting soldiers take their guns home.

14) In states with more guns, more police officers are also killed on duty

Given that states with more guns tend to have more homicides, it isn’t too surprising that, as a 2015 study in the American Journal of Public Health found, states with more guns also have more police die in the line of duty.

Researchers looked at federal data for firearm ownership and homicides of police officers across the US over 15 years. They found that states with more gun ownership had more police killed in homicides: Every 10 percent increase in firearm ownership correlated with 10 additional officers killed in homicides over the 15-year study period.

The findings could help explain why US police officers appear to kill more people than police in other developed countries. For US police officers, the higher rates of guns and gun violence — even against them — in America mean that they not only will encounter more guns and violence, but they can expect to encounter more guns and deadly violence, making them more likely to anticipate and perceive a threat and use deadly force as a result.