TB, are you sure about that. I think that, plain and simple, Michael wanted Roth dead. That's why he told Fredo that Roth wouldn't see the new year. I think Michael's Cuba sojourn was only intended to get rid of Roth.
Oli, sure, Michael wanted Roth dead. But only after he found out who was the traitor in his family. I think that was the main purpose of his trip to Cuba.
And, yes, Michael had good reason to want Roth dead after he concluded that Roth was behind the Tahoe attack. But, the decision to have him whacked in Cuba
may have been prompted by his knowledge that Roth was planning to have him whacked after the Presidential New Year's Eve party--kill or be killed. Whacking Roth in Cuba would have been more dangerous than having him killed in the US.
