U.S. Air Force Tech. Sgt. Gabriel Lleras from the 452nd Security Forces Squadron, March Air Reserve Base, Calif., searches a host national for unauthorized material at an entry control point, during Operational Readiness Exercise, Crisis Challenge 09-12B, at the Combat Readiness Center in Gulfport, Miss., Sept. 19, 2012. (U.S. Air Force photo / Tech. Sgt. Efren Lopez)
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