I have said many times that Iran is a state sponsor of terrorism.

I don't think it's a matter of going back and having a review of our process. Our process is about as thorough as there can be. Is it imperfect? Yes. Is there risk? Yes, but we start with the fact that we have an American that's being held hostage and that American's life is in danger and that's where we start. And then we proceed from there.

We live in a world of absolute immediacy. It is an interconnected, combustible world, where technology and many other actions have given nonstate actors a reach, into countries and societies, for both good and evil, that we have never seen before. So it isn't a matter of just state versus state challenges or conflict. The bigger problem is nonstate actors.

I don't get into the book-telling business of conversations I have with the president. That's not my style, and I don't think that's a responsible thing to do.

Nations, great nations have limitations. All nations have limitations. Even great powers have limitations.

No border that touches Israel is always secure.

All I can do is present what I think is in the best interest of this country and how I can best serve this country and the president of the United States. And I feel very good about that opportunity I've had.