A few years ago, one of us came across a young woman who had just been hit by a car. She was the mother of two young children and one of Atlanta's star runners. I found her unconscious and bleeding profusely from a severe head injury. She died in my arms while I tried to resuscitate her. Her death was tragic, but it wasn't "senseless." In scientific terms, it was explicable. The runner, who had competed in 15 marathons and broken many records, wore no lights or... (GunPolicy.org)