Our guest is Pam Fessler, an award-winning correspondent with NPR News who mainly covers poverty, philanthropy, and voting issues. She joins us to discuss her new book, "Carville's Cure," which is tells the fascinating and little-known story of the only leprosy colony in the continental United States. This facility, located in remote Carville, Louisiana, somehow became -- over the course of the 20th century -- much more of a refuge than a prison.