SOUTHWEST ASIA -- Senior Airman Corbin Hamernik, a firefighter from the 386th Expeditionary Civil Engineer Squadron, checks his radio equipment Nov. 12 before participating in a training scenario here involving simulated hazardous chemicals. The exercise was part of a Department of Defense certification program to train firefighters as hazardous-material response technicians. Airman Hamernik is deployed from the 155th Air Refueling Wing in Lincoln, Neb. (U.S. Air Force photo by Staff Sgt. Stefanie Torres)