Decked out
MCGHEE TYSON AIR NATIONAL GUARD BASE, Tenn. - Metal decking is installed on the classroom building here April 22, 2015, at the I.G. Brown Training and Education Center. Footings for the classroom section are complete and steel work began this month, with 83 tons of steel now erected. (U.S. Air National Guard photo by Master Sgt. Mike R. Smith/Released)