FILE - In this July 14, 1961, file photo, then Lt. John S. McCain III, left, and his parents, Rear Adm. John S. McCain Jr. and Roberta Wright McCain take part in the ceremony to commission McCain Field, the U.S. Navy training base in Meridian, Miss., named in honor of Adm. John S. McCain, in photo at top, respectively grandfather and father to the two McCains. Ten U.S. sailors are missing after a collision between the USS John S. McCain and a tanker early Monday, Aug. 21, 2017, east of Singapore, the second accident involving a ship from the Navy's 7th Fleet in the Pacific in two months. The 154-meter (505-foot) McCain is named after U.S. Sen. John McCain's father and grandfather, who were both U.S. admirals. (AP Photo/File)