People don't realize what a brilliant politician Lincoln was. Looking back, we want to ascribe a level of providence to his every decision but he was a cunning and calculating politician; from the cultivation of his image as a hayseed from Illinois, to his ability to keep this country together under dire circumstances.

You can find virtually everybody black back as far as the 1870 census. Why 1870? That's when the ex-slaves first have surnames. But if you find your great-great-grandfather in 1870 and it says he's 50, that means he was born in 1820 and you're back to 1820 already. For an American that's pretty damned good, you know?

I'm a tech geek. Whenever I read about something new, I think to myself, How can I take this and make it black?

I think that the roots of racism have always been economic, and I think people are desperate and scared. And when you're desperate and scared you scapegoat people. It exacerbates latent tendencies toward - well, toward racism or homophobia or anti-Semitism.

I believe in the law. I think we have a great system of justice. But I do think that system of justice has been corrupted by racism and classism. I think it's difficult for 'poor people' - poor white people, brown people - to be treated fairly before the law in the same way that upper-class people are.

There are two things that have always haunted me: the brutality of the European traders and the stories I've heard about Africans selling other Africans into slavery.

I try to be sensitive, but the atmosphere I create is very supportive. One overriding premise of the series is that guilt is not heritable. It's good to know about them, but you are not responsible for them. You don't have to apologize for them. It's a process of knowing, and the more you know, the richer the sense of yourself. The firmer your foundation as a human being is