They might not have been Oscar-worthy performances. But the acting job by hundreds of Long Island Rail Road (LIRR) employees and their enablers was convincing enough to run a racket that could wind up costing U.S. taxpayers $1 billion or more. On October 27, FBI and New York State agents arrested 11 persons for operating a scheme by which retired workers at the heavily unionized LIRR allegedly visited doctors who would prepare phony medical histories, allowing retirees to receive outsized pension and "disability" checks, courtesy of the U.S. Railroad Retirement Board. One arrestee, in fact, was a former union president. The investigation was triggered by revelations a few years ago of unusually high rates of disability claims and awards. "This was a game where every retiree was a winner," said FBI New York bureau head Janice Fedarcyk.