I meet almost no one that goes to an African-American church or thinks, "I'm going to do that." Now there are whites in African-American churches. They're interracially married. They're highly committed. Maybe there's a professor or two, or a student.

But in the US, when you have two separate cultures, each with its right, each of which has come to exist in this political entity in the last couple hundred years, each feeling like, "I have the right to hold onto my culture," and that's what makes it difficult.

I've played villains on stage - you know, the Iagos and so on - but I think of myself as a funny person. I mostly did comedies before I did TV work.

I may have to shop with them. But on Sunday I don't want to have to worship with them. I want to be able to just be myself and let my hair down." It's also, of course, as we know, the seat of political organization and the affirming of your blackness and so on.

One of the things we find when we talk to people that attend these congregations, they all have social cost to it. People want to know why they're doing that. Sometimes they're questions about selling out on their race or "Are we not good enough that you have to go to this kind of congregation and not ours?" So there are costs to it, and I think they're a little bit higher in the South because of its history.

I never meet a church that wishes they didn't do it. I never meet a leader that wishes they didn't do it. They will all say, to the person, it's hard. It's difficult. It comes with complexities and confusion as you're trying to go across cultures, and you don't understand, you didn't mean to offend somebody but you've offended somebody. But they will all say it just does something.

Once in a while you get people that maybe because of economic reasons, or have a social network, they get attracted. But it's a very tiny percent so that when we look at, you know, who are pastors and who are the head clergy of these congregations, they're overwhelmingly white, just a few African Americans, and those folks are usually called to what were formerly white congregations, or they started interracial church from the get-go.