U.S. Marine Corps Gen. James F. Amos, right, the commandant of the Marine Corps, and his wife, Bonnie Amos, speak with Dr. Evan M. Renz at the San Antonio Military Medical Center in San Antonio March 3, 2013. The medical center is the largest Department of Defense inpatient medical facility. (U.S. Marine Corps photo by Sgt. Mallory S. VanderSchans/Released)