Diving for the Titanic's Last Secrets

What can still be learned from the Titanic – nearly a century after it sank in one of the most notorious disasters of the 20th Century? We’ll talk with Brad Matsen whose new book, “Titanic’s Last Secrets: The Further Adventures of Shadow Divers John Chatterton and Richie Kohler” (Twelve, 2008), shines a bright new light on the subject.