Three makes a trend, as we all know, and many people have reacted by suggesting that the federal government should ban the AR-15 and other so-called assault weapons. Gun advocates have responded with exasperation, saying that, despite appearances, AR-15-style rifles are no more dangerous than any other gun. In a piece today on humanevents.com titled “The AR-15: The Gun Liberals Love to Hate,” NRA president David Keene blasted those critics who “neither understand the nature of the firearms they would ban, their popularity or legitimate uses.” Keene noted there are several valid, non-murderous uses for rifles like the AR-15—among them recreational target shooting, hunting and home defense—and argued that law-abiding firearms owners shouldn’t be penalized because of homicidal loners who use semi-automatics like the AR-15 for criminal purposes.