There are complex, hand-wringing-worthy problems in our social life: deficits and debts and climate change. Gun violence, and the work of eliminating gun massacres in schools and movie houses and the like, is not one of them. Gun control works on gun violence as surely as antibiotics do on bacterial infections…

Adam Gopnik on gun control: http://nyr.kr/VQOKAo

Photograph by Suzanne DeChillo/The New York Times/Redux.