Former FBI agent missing in Iran By PAT MILTON, Associated Press Writer NEW YORK - An American who disappeared in Iran while on a business trip is a former FBI agent in New York and Florida known as a meticulous investigator and an expert in busting Italian and Russian mobsters. The retired agent was identified as Robert Levinson, 59, of Coral Springs, Fla., a U.S. official familiar with the case told The Associated Press on Tuesday. He was last heard from around March 11 while in a coastal area of southern Iran, where he was working for an independent filmmaker,...