NERVOUS SMILE U.S. Marine Corps Lance Cpl. Nathan Peyton breaks a nervous smile moments after discovering an improvised explosive device during a patrol in the Sangin district of Helman province, Afghanistan, Dec. 30, 2010. Peyton's patrol leader said the Marine's alertness saved lives on the mission. Peyton, 19, a native of Post Falls, Idaho, is assigned as a combat engineer with 3rd Platoon, India Company, 3rd Battalion, 5th Marine Regiment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 355795-H-EMO74-921.jpg Photo Gallery