Salman Rushdie tells Steve Paulson that he loved the movie, “The Wizard of Oz” and that he sees it as a parable about home and homelessness. He finds it especially meaningful since he has spent so much of his life living in exile, particularly when Islamic extremists put a price of his head. A collection of Rushdie’s journalism has been published as “Step across This Line: Collected Nonfiction 1992-2002.”