Every now and then a particularly heinous crime makes us pause and reflect. Nine dead in shooting at black church in Charleston. Four marines, one sailor killed in attacks on Chattanooga military facilities. Gunman opens fire on Louisiana movie theater.
The Mass Shooting Tracker is different from other shooting databases in that it uses a broader definition of mass shooting. "The old FBI definition of Mass Murder (not even the most recent one) is four or more people murdered in one event," the site's creators explain. "It is only logical that a Mass Shooting is four or more people shot in one event."
This year there were 18 mass shootings in April, 39 in May, 41 in June, and 34 so far in July -- and the month isn't over yet. The theater shooting was Louisiana's 8th this year. There have been 10 in Ohio, 14 in California and 16 in New York.
Will anything change? Probably not. The Charleston shooting did produce a fruitful national conversation -- not on guns, but on the symbolism of the Confederate flag, which the shooter adopted as a banner of his racist beliefs. It took 150 years and a national tragedy for the country to reach something like a consensus on the meaning of a battle flag.
"Those who live in America, or visit it, might do best to regard [mass shootings] the way one regards air pollution in China: an endemic local health hazard which, for deep-rooted cultural, social, economic and political reasons, the country is incapable of addressing," The Economist wrote in response to the Charleston massacre. "This may, however, be a bit unfair. China seems to be making progress on pollution."