123rd Airlift Wing Chaplain (Lt. Col.) Fred Ehrman takes a drink from his canteen May 21, 2010 while under MOPP 4 conditions following a simulated chemical-weapons attack at the Gulfport Combat Readiness Training Center in Gulfport, Miss. The simulated attack was part of an Air Mobility Command Operational Readiness Inspection. (U.S. Air Force photo/Tech. Sgt. Dennis Flora)(Released)