PALOS HILLS, IL – MAY 03: Army veteran Brad Schwarz brings his service dog Panzer for a check up at Southwest Animal Care Center May 3, 2012 in Palos Hills, Illinois. Schwarz uses a service dog to help him cope with post-traumatic stress disorder (PTSD) related to his 2008 tour in Iraq. In addition to suffering from PTSD, Schwarz has memory loss related to Traumatic Brain Injury (TBI) and he must walk with a cane because of vertebrae and nerve damage in his back and legs. Ten days before he was scheduled to rotate home from a 15-month deployment in Iraq, his second, the Humvee in which he was riding was struck by an Improvised Explosive Device (IED). Of the 5 soldiers riding in the vehicle, which caught fire after the explosion, Shwarz was the only one to survive. (Photo by Scott Olson/Getty Images)