Those cases were "the cumulative result of years of investigative work, including the development of key cooperating witnesses -- a trend that has definitely been tipping in favor of law enforcement," Janice Fedarcyk, assistant director in charge of the FBI's New York Division, said at the time.
To mob experts, the rampant snitching is just another symptom of a mafia that's well past its prime.
"Most people's perception of traditional organized crime, from 'The Godfather' to 'The Sopranos', that's an era that has passed," Garrett said.
After the January arrests, author and mob expert George Anastasia told ABC News law enforcement has beaten the mob down.
"Thirty or 40 years ago, organized crime, La Cosa Nostra, was a major player in the underworld. Their impact was greater, they made more money and the public payed a bigger price for what they were doing... As they've gotten hit again and again and again with indictments and prosecutions and as they've turned on one another, their influence has deteriorated and they don't have the same kind of impact they used to have," Anastasia said. "They just don't have the power."