Women, we are told, should not own guns. Women, we are told, are more likely to be injured by their own guns than to fend off an attack themselves. This «fact» is rooted in a fundamental assumption of female weakness and vulnerability. Why should a woman not be every bit as capable as a man of using a firearm in self-defense? And yet the reality is that millions of American women–somewhere between 11,000,000 and 17,000,000–use guns confidently and competently every day. Women are hunting,...