11.   The Navy and National Transportation Safety Board are conducting investigations of why the submarine surfaced without noticing the boat.

12.   The submarine Barracuda was surfacing when it bumped the merchant ship, which has not been identified, said a spokesman, speaking on condition of anonymity.

13.   There are strong feelings in Japan that Waddle was to blame for failing to detect the Ehime Maru before his submarine surfaced rapidly in a demonstration of emergency procedures.