U.S. Air Force Master Sgt. Chris Skierski sweeps the flight line for foreign objects and debris at Bagram Air Field, Afghanistan on Jan 15, 2012. Skierski is an F-16C Fighting Falcon engine mechanic assigned to the 455th Expeditionary Aircraft Maintenance Squadron, and is deployed from the 177th Fighter Wing, New Jersey Air National Guard. U.S. Air Force photo/Tech. Sgt. Matt Hecht