Another Donnie Brasco

AP:

An undercover FBI agent posing as a wiseguy infiltrated the Gambino organized crime family for two years with an act so convincing he was considered for membership, authorities said today.

"Had we left him out on the street much longer, the Gambino family ranks would actually have increased by one," Pasquale D'Amuro, head of the FBI's New York office, said at a Manhattan news conference announcing more than 30 arrests in a racketeering investigation.