Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, listens as a midshipman asks a question during a class Dempsey is teaching on ethics during at the U.S. Naval Academy in Annapolis, Md., March 26, 2014. Dempsey is on a two-day tour to visit the U.S. Naval Academy and the U.S. Military Academy in West Point, N.Y.