Joseph Lieberman actually said...

The United States cannot be passive and do nothing given the grave threat a nuclear-armed Iran would pose for the United States, Israel and ...

I don't think it is inevitable that we are going to have a war with Iran.

I think the problem with isolating them now and not talking to the government at all is that it probably weakens our ability to be effective...

The threat is real, both to the United States and to Israel, and the profound instability that could result in the region if Iran were able ...