U.S. Air Force Lt. Col. Brian Ortman (front), 1st Fighter Wing Public Health commander, and Maj. Greg Garrison, 633rd Aerospace Medicine Squadron Bio-Environmental Engineering Flight commander, check for contaminated areas as they conduct a post attack reconnaissance sweep during a Phase II Operational Readiness Exercise at Langley Air Force Base, Va., April 20, 2012. The ORE tested Airmen's ability to successfully operate in a simulated combat zone. (U.S. Air Force photo by Senior Airman Jarad A. Denton/Released)