U.S. Air Force Master Sgt. Thomas Thornton gives instructions on how to perform a body sweep using a M295 decontamination mitt during CBRNE survival skills training on the Mississippi Combat Readiness Training Center in Gulfport, Miss., June 18, 2014. Thornton trained airmen on skills needed during chemical, biological and nuclear attacks. (U.S. Air Force photo by Senior Airman Jessica Fielder/Released)