U.S. Air Force Airman 1st Class Karianna Mason, 633rd Force Support Squadron, scans Senior Airman Kristin Barber, 633rd Inpatient Operations Squadron, for weapons at the passenger terminal during the phase I combined unit exercise, at Langley Air Force Base, Va., Dec. 11, 2012. The CUE was held to validate the full spectrum of Langley's deployment operations. (U.S. Air Force photo by Staff Sgt. John D. Strong II/Released)