LAUGHLIN AIR FORCE BASE, Texas – Tech. Sgt. Nicholas Ehlinger, 47th Security Forces Squadron kennel master, explains the finer points of military working dog handling to a group of winter visitors during a demonstration here Jan. 22. Base tours are being conducted by public affairs for winter visitors to Del Rio as part of a program with the Chamber of Commerce. (U.S. Air Force photo by 2nd Lt Eric Jones)