Military working dogs may be subject to post-traumatic stress disorder
Staff Sgt. Kyle Smith, 81st Security Forces Squadron, and his military working dog, Densy, spend some bonding time together while waiting for a vehicle inspection at Keesler Air Force Base, Miss., Jan. 31, 2013. Recent studies suggest that military working dogs may be subject to post-traumatic stress disorder, much like their human counterparts. (U.S. Air Force photo by Kemberly Groue)