Air Force civilians at Bagram
Nick Higgins, a U.S. Air Force civilian, watches the discharged material coming off of a rock crushing machine on Bagram Airfield, Afghanistan, Jan. 21, 2014. Higgins, a native of Cummings, Ga., and deployed from Robins Air Force Base, Ga., is the production manager for an operation that crushes stone and recycled concrete for use as fill and walking path surfaces on base.(U.S. Air Force photo by Senior Master Sgt. Gary J. Rihn/Released)