Philip Jenkins, a scholar of history and religion at Pennsylvania State University, believes that on the important religious issues the day the American public can't see the forest for the trees. In his article in the October Atlantic, "The Next Christianity," (and in his recent book, The Next Christendom), Jenkins argues that Americans are all but unaware of what is one of the most important shifts of the twentieth century—the explosive growth of Christianity in the Southern Hemisphere. Here is an Interview with him.