Chalmers Johnson discusses his book, "The Sorrows of Empire: Militarism, Secrecy, and the End of the Republic," published by Metropolitan Books. Topics include the increasing power of the Executive Branch, loss of liberty, the Vietnam War, the Cold War, the September 11 attacks, militarism, and the overextension of the U.S. "empire." Johnson taught Chinese and Japanese politics at the University of California at Berkeley for 26 years. He has also authored "Blowback: The Costs and Consequences of American Empire," and "Nemesis: The Last Days of the American Republic."