Well said Lilo!

And when Michael asks him who gave the go ahead,

Roth does not reply with an I don't know answer or a why do you care? The guy tried having you killed in your own home, kind of answer, but instead with the how DARE you ask me about Pentangeli! I never asked you about Moe Green! answer :

There was this kid I grew up with -- he was younger than me. Sorta looked up to me ...... As much as anyone, I loved him -- and trusted him......Someone put a bullet through his eye. No one knows who gave the order -- when I heard it, I wasn't angry... I let it go. And I said to myself, this is the business we've chosen -- I didn't ask who gave the order -- because it had nothing to do with business!


Roth, had hoped that Michael would blame Frankie Five Angels for the attempted hit in Tahoe and therefore himself would have ordered a hit on Frankie, which in turn would have given Roth and his Rosato brothers more power in New York and at the same time removed a much trusted ally to the Corleones in Frank Pentangeli. It was an attempt to try and weaken Michael that much more in what our friend Turnbull always refers to as the
great chess game between Roth and Michael.