I spent a lot of time developing in books why worshipping separately actually impacts inequality, economic, social, on and on. So I really do believe there are huge advantages to being together even though it's difficult, even though we have a lot to learn.

It happens a little bit more in the West, where there's more fluid - where everybody's originally from somewhere else. So they have a little bit more permission to do it. It happens the least, at the individual level at least, in the South, because the South has very strong, you know, set up black churches and white churches and a long history of that, and so it's a bigger social cost.

If you move here from somewhere else, I often think if I move to Germany, for example, or if I move China and I go worship there I will understand and I'll be willing to give up a lot of my culture because I'm in somebody else's homeland. So I'm going to have to act German or Chinese, whatever that might mean.

I certainly think so, and I argue so, and I give talks on that. Are there risks by putting people together? Absolutely. Is there value in the black church? Absolutely. Is there value in having immigrant churches? Absolutely. But if we don't have congregations gathering with people of different races, what we're doing is we are redefining racial division, a racial inequality.

I ask the clergy why don't I see myself represented in leadership? And I'm told, and this happens quite a bit, "We don't think about race when we hire. We just hire the best person for the job."

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.

There are roles that are terrifying because they're large or you may feel that they're out of your line, but I'm never terrified once the actual work begins. Once you begin rehearsal, then it's small building blocks. It's solving little problems one at a time.