A roadside bomb hit Sgt. Jerrald Jensen's Humvee in Iraq, punching through heavy armor and shooting a chunk of hot metal into his head at several times the speed of sound, shattering his face and putting him in a coma. "I wasn't supposed to live," the veteran lisped with half a tongue through numb lips. "No one knows why I did. It's shocking." Even more shocking is what Jensen did next. After 16 surgeries, the sergeant volunteered to go back to combat in one of the most savage corners of Afghanistan, where he was injured again. Perhaps most shocking, though, is what happened when he got home.