The least fantastical is the idea that if a criminal threatens or attacks tomorrow, you want a gun handy to kill him. Being prepared for a showdown with a bad guy is the main reason gun owners give for owning one, and that answer has doubled in the surveys since the 1990s. During the same period, the chance of an American actually having such an encounter has decreased by half. In New York City, where restrictions on owning and carrying guns are among the strictest in the United States, the chance of being murdered is 82 percent less than it was in 1990.
