U.S. Air Force Lt. Col. Brian Ortman, 1st Fighter Wing Public Health commander, tests for contamination during a Phase II Operational Readiness Exercise at Langley Air Force Base, Va., April 20, 2012. The ORE was designed to test Airmen across the base in their ability to operate in a deployed environment. (U.S. Air Force photo by Airman 1st Class Kayla Newman/Released)