Retired Indiana Air National Guard Brig. Gen. Stewart Goodwin, executive director of the Indiana War Memorial in Indianapolis, gives U.S. armed forces second-highest ranking officer, Vice Chairman of the Joint Chiefs of Staff, Navy Adm. James A. Winnefeld Jr., a tour of a replicated model of the radio room in the USS Indianapolis, Friday, May 25, 2012. Dubbed, “The worst disaster in U.S. Naval history,” the USS Indianapolis was sunk by Japanese torpedoes near the end of WWII after delivering the world’s first operational nuclear bomb. Of the 1,196 aboard, only 316 survived after floating four days at sea without supplies in shark infested waters.