Not an idle moment
Staff Sgt. Daniel Romine, a reservist in the 442nd Civil Engineer Squadron, studies his Air Force Airman's Manual while in a simulated bunker waiting for sweep teams to check a tactical exercise area during an operational readiness exercise. The squadron is part of the 442nd Fighter Wing, an Air Force Reserve Command A-10 Thunderbolt II unit at Whiteman Air Force Base, Mo. (U.S. Air Force photo/Master Sgt. Bill Huntington)