SECURITY DUTY � U.S. Army Staff Sgt. Emanuel Walls, assigned to 2nd Platoon, Alpha Company, 1st Battalion, 327th Infantry, 101st Airborne, Fort Campbell, Ky., provides security while his platoon conducts a traffic control point, checking random vehicles outside the Namla village, Iraq, Oct. 31, 2005. U.S. Air Force photo by Tech. Sgt. Andy Dunaway Hi-Res Photo