The editors at The Guardian see it this way:
The annual toll from firearms in the US is running at 32,000 deaths and climbing, even though the general crime rate is on a downward path (it is 40% lower than in 1980). If this perennial slaughter doesn't qualify for intercession by the UN and all relevant NGOs, it is hard to know what does.
To absorb the scale of the mayhem, it's worth trying to guess the death toll of all the wars in American history since the War of Independence began in 1775, and follow that by estimating the number killed by firearms in the US since the day that Robert F. Kennedy was shot in 1968 by a .22 Iver-Johnson handgun, wielded by Sirhan Sirhan.
The figures from Congressional Research Service, plus recent statistics fromicasualties.org, tell us that from the first casualties in the battle of Lexington to recent operations in Afghanistan, the toll is 1,171,177. By contrast, the number killed by firearms, including suicides, since 1968, according to the Centres for Disease Control and Prevention and the FBI, is 1,384,171.
That 212,994 more Americans lost their lives from firearms in the last 45 years than in all wars involving the US is a staggering fact, particularly when you place it in the context of the safety-conscious, "secondary smoke" obsessions that characterise so much of American life.