 Gittins stated that the reason that it took two years for Waddle to make the trip to Japan was because Waddle was forbidden to do so while he was still in the USN and because of financial constraints and fear of litigation after his retirement.After the sinking of "Ehime Maru", many Japanese, including government officials, questioned why civilians were allowed in "Greeneville" control room during maneuvers that could place other, uninvolved, vessels at risk.Also, the Japanese expressed concern that the United States Navy did not immediately take full responsibility for the accident, appeared at first to try to conceal information about the DVE program, and did not court martial Waddle or have him personally apologize immediately after the accident.