Marcus & Mark answer open-line questions. Mark says he is a double-jump convert. Having been reared, more or less, as an agnostic pagan, he became a non-denominational Evangelical in 1979, and entered the Catholic Church in 1987. Mark is the author of the books “By What Authority?: An Evangelical Discovers Catholic Tradition” and “Making Senses Out of Scripture”. To get to know Mark better, visit his blog at: http://www.patheos.com/blogs/markshea/.