From Bolton:

"It's been conclusively proven Iran is not going to be talked out of its nuclear programme. So to stop them from doing it, we have to massively increase the pressure.

"If we can't get enough other countries to come along with us to do that, then we've got to go with regime change by bolstering opposition groups and the like, because that's the circumstance most likely for an Iranian government to decide that it's safer not to pursue nuclear weapons than to continue to do so. And if all else fails, if the choice is between a nuclear-capable Iran and the use of force, then I think we need to look at the use of force.

"If the choice is them continuing [towards a nuclear bomb] or the use of force, I think you're at a Hitler marching into the Rhineland point. If you don't stop it then, the future is in his hands, not in your hands, just as the future decisions on their nuclear programme would be in Iran's hands, not ours."

From Perle:

"We have already seen a change in policy towards Iran. It is now firmly back in the hands of the Department of State, [which is] institutionally disposed to settle problems through compromise, to settle rather than to fight. ... You cannot settle with Al Qaeda. You cannot settle with Islamist extremists. Those who suggest we can do great damage."