All clear
Master Sgt. Rob Kelley, right, clears his M-4 rifle as Tech. Sgt. Timothy Hamlett ensures there is not a bullet in the chamber during the Unit Training Assemble at Dover Air Force Base, Del., Nov. 6, 2011. The sergeants are reservists with the 512th Security Forces Squadron. Kelley saved a woman from carbon-monoxide poisoning and a fellow unit member from choking. (U.S. Air Force photo by Capt. Marnee A.C. Losurdo)