We know that there are unaccounted-for Scud and other ballistic missiles in Iraq. And part of the problem is that, since 1998, there has been no way to even get minimal information about those programs except through intelligence means.

My parents elected me president of the family when I was 4. We actually had an election every year and I always won. I'm an only child, and I could count on my mother's vote.

Defeating human trafficking is a great moral calling of our time...

We have important things to talk to the Russians about, despite their meddling in our elections. I hope they're talking about a way to eventually end this horrific humanitarian crisis in Syria, end that war. The Russians have more leverage than we do. I hope they're talking about the fact that, if Kim Jong-un's long-range missiles can reach Alaska one day, they can also reach Vladivostok.

Even when you cherish democratic ideals, it is never easy to turn them into effective democratic institutions. This process will take decades.

Any time you have a situation in which you are calling for more time rather than calling for Iraq to immediately comply, it plays into the hands of Saddam Hussein.

There is nothing better than being in a classroom with really, really brilliant students, and opening up new worlds to them. That's what I love doing.