American Mainline ReligionWade Clark Roof and William McKinney argue that a new voluntarism is slowly eroding the old social and economic boundaries that once defined and separated religious groups and is opening new cleavages along moral and life style lines. Nowhere has the impact of these changes been more profoundly felt than by the often overlooked religious communities of the American center, or mainline Protestant, Catholic, and Jewish. "American Mainline Religion"