For the United States to recommit itself to the obligation that we undertook in the Nuclear Non-Proliferation Treaty that many other states undertook, which was to work towards disarmament and the eventual elimination of nuclear weapons, is something that manifestly serves our national security interests.

The U.S. cannot go it alone simply when it is convenient.

I was working with a number of African heads of state. And after their initial surprise, I think many of them just treated me as they would anybody else. They had to deal with me as a representative of the United States of America, and the United States of America was too important to be dismissed or ignored on any grounds.

People are consuming the news that is comfortable for them, not necessarily the news that is real or that they need to know.

I don't worry about how folks want to characterize me.

I have been to Libya and walked the streets of Benghazi myself.

I was very happy in my job at the United Nations.