Staff Sgt. Scott Bell, 579th Medical Operations Squadron Bioenvironmental engineer, inspects photos of the training area March 27 during the Air Force District of Washington Black Flag Exercise held at the Center for National Response in Gallagher W.Va. Photographs are taken at the training site of all suspicious items, then brought back to the on-scene commander for review. (U.S. Air Force photo by Staff Sgt. Christopher Ruano)