DOVER AIR FORCE BASE, Del. -- Airman 1st Class William Watkinson (left) and Aaron Wiesenburger, 436th Civil Engineer Squadron firefighters, decontaminate Airman 1st Class Jason Boeninghaus, a contaminated contractor, during a major accident and response exercise near Building 1344, Feb. 17, 2011. This tent is the final stage of decontamination. After this stage, the contaminated individual would be processed through medical personnel. (U.S. Air Force photo/Jason Minto)