SUB AGROUND: UNDERSEA PEAK TO BLAME?: "It's still unclear why the USS San Francisco ran aground Friday night. But retired Rear Admiral Hank McKinney, the former commander of the U.S. Pacific Fleet's submarine force, has a guess: underwater mountains, or 'sea mounts.''I expect that we will find out from the Navy that this grounding was the result an unknown sea mount or one that was incorrectly charted,' he tells Defense Tech. Submarines have run aground in the past in the 'open ocean' while running submerged generally due to a navigation error."

(Via Defense Tech.)