On Sunday's "NBC Nightly News," correspondent Pete Williams previewed details of a new book, The Terrorist Watch: Inside the Desperate Race to Stop the Next Attack, by Ronald Kessler, in which Kessler revealed information obtained by the an FBI agent who extensively interviewed Saddam Hussein and found, among other things, that the former Iraqi leader had deliberately tried to "fool the U.S." into believing he had weapons of mass destruction because "he wanted Iranian leaders to believe that he had nuclear and biological weapons." The FBI agent, named George Piro, also reported that Saddam Hussein "hoped the post-Gulf War sanctions on Iraq would dissolve, allowing him to pursue a nuclear capability." (Transcript follows)