Intelligence is not a science.

So, I think even in Saudi Arabia there is movement. And we have to remember that over the years they've stabilized the oil price and that is tremendously important for the economies of the world. I think we have no choice but to work with the government of Saudi Arabia.

Over a period of time, I think the popular will in Iran will prevail.

Policymakers have to make judgments based on the best intelligence they get.

Of course, China is a key to the North Korea if we're going to solve that riddle, but they could also be helpful on Iraq, which is why it's important that we maintain a constructive dialogue with China.

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.

The Crown Prince has said he needs to broaden political participation in the governing of Saudi Arabia.