This is an interesting question. I still go with Fredo being fooled into thinking by helping Roth, "there would be something in it for him". I think we are all in agreement that Fredo wasnt the sharpest knife in the drawer. When approached by Roth he didnt have the farsight to see what helping Roth would entail. Afterall this is a guy whose big job was to pickup people at the airport and run mickey mouse nightclubs.
By the way, even though abbreviations are acceptable on the board, I would like my favorite (Johnny Ola), referred to with his full name and not his Initials (J.O.) Thank you......