Kurt Andersen surveys the cultural impact of history’s most disturbing symbols and Paola Antonelli, design curator at the Museum of Modern Art, looks at the ever-changing style and technology of the sneaker. Kurt and special guest Teller, half of the magic and comedy team Penn & Teller, talk about secrets, with stories about the search for the real identity of a cult-musician called Jandek and about the secret coded messages of escape and survival sewn into quilts during the era of the Underground Railroad.