Find out about the fascinating journey Rene Descartes’ bones took after his death in 1650 - his remains traveled through six countries and three centuries, and were buried three times. Plus: a States of the Union update on Iowa, with 3 weeks until Election Day. A look at the art of 17th-c. Chinese painter Wang Hui. Hear about one man's childhood in Coop City in the Bronx. And Nicholas Katzenbach, attorney general in the Johnson administration, talks about his civil rights work in the 1960s.