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Senior Airman Christopher Powell, 380th Expeditionary Security Forces Squadron, checks for the proper identification cards needed for passing through an entry control point Feb. 14, 2011, in Southwest Asia. Keeping Security Forces on 24-hour watch helps minimize the frequency of threats on base. Airman Powell is stationed out of the 30th SFS, Vandenberg, Calif. (U.S. Air Force photo by Senior Airman Maynelinne De La Cruz)
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