So one of the profound things we found when studying these congregations, the mixed ones, is just how much overlap and interracial ties that develop not only with the people in the congregation, but they start meeting each other's families, and their friends, and they go to each other's neighborhoods if they live in different neighborhoods, and at work they meet people they wouldn't otherwise met, and so it creates a whole new definition of what the group is.

It's one of the things we find in these congregations is that they are much more likely to be sort of up-beat worship styles, more likely that people in these congregations say "Amen," maybe get up and dance some, tend to be a little bit more lively than a typical white service would be, but not as lively as a typical black service would be.

I think with President Obama there's going to be a discussion, because he himself is multiracial, because we have for the first time a non-white president. There's going to be talk about what does this mean? What is it? Are we in a new era?

So one of the profound things we found when studying these congregations, the mixed ones, is just how much overlap and interracial ties that develop not only with the people in the congregation, but they start meeting each other's families, and their friends, and they go to each other's neighborhoods if they live in different neighborhoods, and at work they meet people they wouldn't otherwise met, and so it creates a whole new definition of what the group is.

What's happening is that Asian and Latino and other groups without that history are more likely to end up in either black churches or white churches and then make them multiracial churches. I talk about that in the US we have two cultures.

You find the most in not any particular denomination specifically. It's the style of worship. So if we have what we call a charismatic worship style, that means upbeat music and a more lively style of preaching usually, people are allowed to clap, say "Amen," whether they're mainline Protestant, conservative Protestant, and Catholics, whatever, they're much more likely to be integrated.

I think it's going to open up a wider place for a discussion about we ought to come together in our churches, in our neighborhoods, in our work places, in our clubs and our networks. I think it'll be more acceptable to talk about it. We'll see what happens. It'll take some time. But I think it will.