We can't rely - or no country can rely on just a single personality to carry it forward. And so what the American founding fathers understood was that institutions were built for human imperfection not human perfection.

I grew up in a very loving middle class family. My parents were educators. I'm not even the first PhD in my family. They tried to shield me, just as other parents in my neighborhood tried to shield their children. But you knew there was a reason that you couldn't go to that theme park or to a movie theater or to a hamburger stand. They couldn't shield you completely. What they did though was they never let it be an excuse for not achieving, and they always said racism is somebody else's problem, not yours. They tried in that way not to make us bitter about Birmingham.

We've been a country that's been fortunate to be protected by two oceans, to not have serious attacks on our territory for most of our history. And we were unfortunately reminded in a very devastating way of our vulnerability.

The PDB (Bin Laden Determined to Strike in U.S.) does not say the United States is going to be attacked. It says Bin Laden would like to attack the United States. I don't think you, frankly, had to have that report to know that Bin Laden would like to attack the United States.

I get letters from kids from all over the country. I always try to answer them because there were people I looked up to in my youth and just wanted to be in contact with. It's also important to realize that you find your role models in a lot of different places. I've never believed that your role models have to look like you. You can find them in all sort of colors, shapes and sizes.

We need to fight protectionism with everything that we have because when there's a level playing field and when you have open markets and when free trade is flourishing, American workers, American farmers, Americans are going to benefit.

When I said I had always hoped to marry in my race, I really do mean that. That doesn't mean I absolutely wouldn't marry outside of it, but there's a culture and traditions to maintain, and I have great pride in them, and I always thought it would be wonderful to share that with somebody of my race.