U.S. Air Force Senior Airman Corie Flores, right, 633rd Security Forces Squadron patrolman, practices taking a weapon away from Marvin Smith, left, Department of the Air Force police officer, during a 7-day Krav Maga course at Langley Air Force Base, Va., April 7, 2012. Students learn to defend themselves against a variety of potential attacks. (U.S. Air Force photo by Airman 1st Class Teresa Cleveland/Released)