I know...i've seen that before. It just doesn't make sense to me that the feds would put a rat in a cell with a mafioso like Gambino. I don't know...it just seems odd to me.
Heres where Franzese's wife talked about Gambino and his wife.
http://books.google.com/books?id=oG-ngNrfQVYC&pg=PA109&lpg=PA109