Japanese officials on Friday were disappointed after U.S. naval officers failed to shed light on whether the captain of a submarine that sank a Japanese fishing trawler, leaving nine lost at sea, would be court martialed. A team of U.S. naval officers visited local officials and families of the nine people, including four teenage fisheries students, lost after the USS Greeneville surfaced into and sank the Ehime Maru off Hawaii on February 9. The commander of the U.S. Pacific Fleet is prepared to order the captain and a key enlisted man to undergo disciplinary hearings but not courts-martial for their roles in the accident, a navy official in Honolulu said on Thursday.