John Dean, former counsel to President Nixon discusses his book "Worse Than Watergate: The Secret Presidency of George W. Bush."

James Bamford, author of the first book ever written about the NSA discusses his most recent book, A Pretext For War: 9/11, Iraq, and the Abuse of America's Intelligence Agencies.

Jeremy Leggett, an internationally renowned geologist and energy entrepreneur discusses his book "The Empty Tank: Oil, Gas, Hot Air, and the Coming Global Financial Catastrophe."

Seymour Hersh, Pulitizer Prize-winning reporter and author of Chain of Command: The Road from 9/11 to Abu Ghraib discusses Iran, Iraq, Bush and torture.

Gordon Chang discusses his new book Nuclear Showdown: North Korea Takes on the World.

Scott Ritter, former chief UN weapons inspector in Iraq, discusses his new book "Iraq Confidential : The Untold Story of the Intelligence Conspiracy to Undermine the UN and Overthrow Saddam Hussein.

Jennifer Harbury discusses her new book "Truth, Torture, and the American Way: The History and Consequences of U.S. Involvement in Torture."

David Vise, a Pulitzer Prize-winning reporter from The Washington Post discusses his new book "The Google Story: Inside the Hottest Business, Media and Technology Success of Our Time."

Barbara Ehrenreich, the author the New York Times bestseller "Nickel and Dimed". discusses her latest book, "Bait and Switch: The (Futile) Pursuit of the American Dream.