To get back on topic:

The Roth/Michael interactions are, IMO, the most interesting and stimulating elements of GFII. The continuing, underlying theme is the deadly ballet the two of them dance throughout the film. Lots of ambiguities and missteps. But the key is the famous "this is the business we've chosen" scene. It's a near-certainty that each of them knew what the other's intention was at that point. And yet, they continued to play out their string to the very end: Michael to find out who the traitor was, Roth angling for the $2 million. Great stuff!

And even then it wasn't over...