America’s maritime officers are seafarers, working the decks, engine rooms and other sections of U.S.-flagged commercial and military vessels. They sail the world’s oceans, the Great Lakes and inland waters. But federal prosecutors right now are concerned about certain things the people who run their 4,000-member union may have done on land. On September 14, officials from the Justice and Labor Departments announced the unsealing of a 13-count indictment against Michael McKay, 58, national president of the American Maritime Officers (AMO), his brother, Robert McKay, 55, AMO’s national secretary-treasurer, and two other men. Charges include embezzlement, mail fraud, graft, obstruction of justice, witness tampering and falsification of records.