U.S. Air Force Capt. Terry Klein, 633rd Medical Group bioenvironmental engineer, undergoes a thorough scrub-down during a training exercise at Langley Air Force Base, Va., May 16, 2013. Team members were washed and scrubbed in a decontamination area to ensure contamination was contained. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)