It's a dog's life at Bagram
Artus, a military working dog, shows off his bark as he and Staff Sgt. Mitchell Stein work at an entry control point Feb. 2, 2010, on Bagram Airfield, Afghanistan. Sergeant Stein and Artus are assigned to the 455th Expeditionary Security Forces Squadron, and are deployed from Spangdahlem Air Base, Germany. (U.S. Air Force photo/Tech. Sgt. Jeromy Cross)