Shane Claiborne was a young Methodist who grew up in the Bible Belt, became a Jesus freak, and moved to Philadelphia despite his family's misgivings, helping the homeless there. Then in his early twenties he boldly requested an internship with Mother Teresa in Calcutta. She simply responded, "Come."
Besides illuminating his own faith journey, Claiborne is insightful on the huge U.S. cultural and economic divide: the problem isn't that wealthy Christians don't care about the poor, he says, it's that they simply don't know the poor.