There are three things, and it depends on the group that we're talking about, but there's history, there's culture, and then there's social networks. So, you know, historically black and white, they worship together until about the end of slavery, and people started moving out into separate churches. But it was because of discrimination and racism and such that blacks began to establish their own denominations and their own churches.

Absolutely, although every congregation will say, you know, every worship leader will say it's vital. It's very important, but again these are, you know, these are different cultural styles.

We do not have an American culture. We have a white American culture and a black American culture. So when those two groups try to get together, [it's] very difficult because they each feel like they have the right to their culture.

There's one denomination in particular, though, that has pushed very hard to be multiracial in its denomination - not only its denomination but, I mean, in its congregations, and it's called the Evangelical Covenant Church, http://www.covchurch.org/ which is headquartered in Chicago. Their whole goal is that's the kind of churches they start, multiracial, and I think they say now 20 percent of their churches are that.

And then they would have the shoe removers on one side, and the non-shoe removers on the other side until they could work through coming to understand why we might both be trying to worship authentically, and because of our cultural background we have these different ideas. But it took a while.

And again, this connection that you get: I meet Joe at church. Joe's connected to a whole network of people I don't know. Joe likes me. He invites me over to his son's birthday party, and I meet his whole family. I meet his friends. I get to know his neighborhood. That happens all the time.

I think whites are used to being in power, so when whites think we ought to have integrated churches they think, "People ought to come to our church. What can we do to get them to come?"