Head Medical Officer of the Marine Corps Rear Adm. Richard Jeffries responds to a reporter's question during a Pentagon press briefing on May 4, 2007, concerning the release of findings from the Mental Health Advisory Team Survey. The survey assesses the mental health of deployed U.S. Army and Marine Corps personnel in Iraq. Jeffries was joined by Navy Capt. William P. Nash (left) and Army Col. Carl Castro (center) both contributors to the study.