U.S. Service members are debriefed after a simulated exercise during a two-week Hazardous Material Awareness and Operations Training Course at Langley Air Force Base, Va., Aug. 13, 2014. A total of 12 students were trained and certified from four installations including Langley, Ellsworth and Andrews Air Force Bases as well as Elizabeth City, N.C. Coast Guard members. (U.S. Air Force photo by Senior Airman Connor Estes/Released)