Postponed from last week- Best-selling author Tom Clavin talks about his latest book "Running Deep: Bravery, Survival, and the True Story of the Deadliest Submarine of World War Two." The submarine to which the subtitle refers was the U.S.S. Tang- which sank more Axis vessels than any other Allied sub. The book also discusses the crucial role that American submarines played in the Pacific Theater, especially in the immediate wake of Pearl Harbor, which severely crippled every other aspect of our naval forces.