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

One can't erase the tremendous burden of apartheid in 10 years, 20 years, I believe, even 30 years.

We have some straight journalism, but then we have opinion and perspective. And I think a lot of people, especially young people, don't know how to tell the difference, and aren't motivated to tell the difference.

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.

Can I be blunt? Yes. Can I be diplomatic? Yes. Can I concoct a mixture of vinegar and honey when the circumstances warrant? Yes.

I've been very lucky to have had a supportive family, a great education, enormous opportunity and challenge.

We have to know who we are and know what we believe.