UPDATE 1-FBI agent leaked insider trading probe involving gambler, pro golfer - U.S.
December 16, 2016 at 18:39 PM EST
NEW YORK, Dec 16 (Reuters) - U.S. prosecutors said on Friday that an FBI agent had confessed to being a "significant source" of leaks to journalists covering an insider trading probe involving a famed Las Vegas sports gambler as well as professional golfer Phil Mickelson.