[quote=Don Cardi....
Now the question is, did Moe really talk to Barzini himself? Or did his best friend, Hyman Roth talk to Barzini?

Don Cardi [/quote]

The way Moe said "Tawk" makes me think he did in fact
"talk to Barzini." But Roth would have been involved.

Like this:

Green - Michael Corleone is coming to Las Vegas to try to move me out of the casino business.
Roth - The Corleones have been trying to move people out of their territories for years. Believe me, its in their blood.

Green - Barzini's people have contacted me and have told me to go firectly to him. They say I can make the deal and still keep my hotel. I just wanted you to know this because I know you and the Corleones go back a long way and I don't want there to be any trouble.

Roth - You're a wise and considerate young man. I only wish I could live long enough to see you gain even more control in this city you invented.

Green - Then you don't mind if I slap Fredo around and tell Michael to fuck off.

Roth - My business was with Vito Corleone. His kids are small potatoes.