The nuclear program is not the only issue dividing Iran and the US. Iran's role in the region is also creating conflicts. For example, you support the Shiite Houthi militias in Yemen whereas the US is on the side of the coalition led by Saudi Arabia.

We're [Iran] not dismantling anything. We are uninstalling some centrifuges and reconstructing the Arak reactor, modernizing it. . . . The remaining activities that we need undertake will not take more than several days, less than two weeks.

The Persian Gulf is our lifeline ... We will respect international navigation, for us, freedom of navigation in the Persian Gulf is a must.

Understanding that these statements do not represent reality, we should not be threatened by the language that he has used.

I think we are making an assumption that that is the outcome of the negotiations. I think President Assad will be prepared to accept whatever the outcome of the intra-Syrian dialogue and the decision of the Syrian people is. But people are trying to decide and determine the outcome of the negotiation before even we agree to start the negotiations.

If anything caused ISIS, it was the 2003 U.S. invasion of Iraq.

It is important for everybody to insure that the process will go on, that the ceasefire will hold. Of course, there is no ceasefire against Daesh [the Islamic State], Jabhat al Nusra, and Al Qaeda.