Okay, let's say that Gravano would've turned out to be a rat regardless, I'm still not convinced that Gotti didn't bring himself, as well as many others, down with those tapes. I'm sure they would've gotten him no matter what, but who's to say that it wouldn't have been another 5 years if not for his big mouth. He was talking about the Castellano, Bilotti, DiBono, DiBernardo, and other murders on tape, long after they were committed. Absolutely no reason to bring those up. That's one of the rules, never discuss past murders. Those tapes are what allowed the feds to obtain a court-authorized arrest warrant for Gotti, Gravano, and Locascio that day. They probably would've brought them down eventually regardless, but they would've had to find some other way if wiretaps didn't work.