U.S. Air Force Senior Airman Joshua Handy redirects traffic at the Rivers Avenue gate at Joint Base Charleston, S.C., March 23, 2010. Airman Handy redirected traffic so maintenance work could be completed. Airman Handy is a security forces patrolman with the 628th Security Forces Squadron. (U.S. Air Force photo/James Bowman/released)

U.S. Air Force Senior Airman Daniel Keener completes an identification check at the Rivers Avenue gate on Joint Base Charleston, S.C., March 23, 2010. Airman Keener is a security forces patrolman with the 628th Security Forces Squadron. (U.S. Air Force photo/James Bowman/released)