Putin has a lot at stake here and restoring the relationship with the United States, and there are already signs as Sandy mentioned that he's moving in the right direction to begin to ascertain that their trade with Iran is not used for the production of nuclear weapons.
And I argued with that intelligence estimate and I think it is a responsibility of policymakers to use their best judgment on the basis of the intelligence they've received.
I can remember when I was National Security Adviser, the intelligence community told us... they put out an intelligence report saying that Iran would never back off from attacks on shipping in the Gulf if we use force.
My understanding is that what was provided was general order of battle information, not operational intelligence. I certainly have no knowledge of US participation in preparing battle and strike packages and doubt strongly that that occurred.
Policymakers have to make judgments based on the best intelligence they get.
Intelligence is not a science.