I want to tell you about Private Stephen Tschiderer, a 20-year-old Army medic of the 265th Brigade Combat team. While on patrol in Baghdad on July 2, insurgent snipers stalked the soldier by videotaping him from a nearby van. This footage would later prove Tschiderer's valor. Within seconds of walking away from his Hummer, he was shot in the chest above the heart. Tschiderer goes down — but immediately pops back up, fires back, and runs back behind the Hummer. From behind the Hummer, he signals the snipers' hiding spot to his unit. The 265th disabled the insurgents — including...