Two of the biggest issues faced by soldiers and combat veterans are stress and mental health. At Walter Reed Hospital, doctors have enlisted psychiatric service dogs to help treat soldiers suffering from Post Traumatic Stress Syndrome. What role does man's best friend play in healing? What can be done to catch signs of an impending breakdown before it's too late? Guest host Sara Terry gets an update on yesterday's shootings at Fort Hood, looks at the role stress might have played and learns about the evolving role of psychiatric service dogs.