I'm reading "Casino" right now and it isn't a bad book. Gives insight into the characters tha the movie doesn't.
I hope I really don't insult anyone (well guess I really don't care but am being polite) but One thing I like about the "Gangster" movies is that they aren't PC (Politically Censored) in ANY way. Everyone gets insulted equally!

The reality of their lives is so outrageous that changing it on screen would take away from it.
Could you imagine GF 1 made today with some of the characters being changed around to be "Politically Sensitive"? That might make a whole interesting topic unto itself, maybe I'll post it!!!!