Post Attack Reconnaissance (PAR) team members simulate bleaching their hands and feet during a Chemical, Biological, Radiological and Nuclear Defense (CBRN) Survival Skills Training course on Joint Base Andrews, Md., Feb. 14, 2013. The PAR team must go through a Zone Transition Point to get from a contaminated to uncontaminated zone. (U.S. Air Force photo/Airman 1st Class Nesha Humes)(Released)