Valachi wasn't high enough up in the Mob to know a lot. But, what he told was more than what the FBI knew at the time.
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bobby kennedy was the one who was insturmental in valachi flipping, kennedy wanted to embarrass hoover and the fbi, after valachi's testimony, seen by millions, hoover could no longer say their was no mafia.[/quote]

Actually it was the Appalachian meeting, where Hoover could not deny that there was a criminal organization that operated across the country. Kid Twist mentioned it, but how he kept mixing up three different organizations, many just thought he was talking only about Lepke. Local law enforcement, FBN, Secret Service knew it exists, while the FBN knew it stretched to other countries.