I wouldn't doubt that the Magnafichi and the Caruso files are heavily redacted. Too many contacts still alive.

The FBI did have Armando Fosco's file and destroyed it. I think I mentioned to Snakes that even a guy form an older generation whose file most would consider acceptable to the public like Al Capone's brother Matt was destroyed. Ricca's file though is old enough that they should reprocess it; potentially a reprocessed Ricca file could have some good stuff.