WASHINGTON - The superintendent of the U.S. Naval Academy has resigned in response to findings by Navy investigators that he had improper contact with a Marine sentry last New Year's Eve. The Navy said in an announcement Wednesday that Vice Adm. Richard J. Naughton submitted his resignation Tuesday during a meeting with the Navy's top officer, Adm. Vern Clark, and Clark accepted it. Naughton, who had been in the job only one year, was accused of improper contact with a Marine sentry at the Naval Academy after he grabbed the sentry's wrist. An investigation by the Navy's inspector general substantiated...