For tonight's special edition of Conversations with Great Minds - Thom is joined by Lamar Waldron. Lamar is an author and historian - and was once called "the ultimate JFK historian and examiner," by Variety Magazine's Liz Smith. His extensive and groundbreaking research has been featured in hundreds of newspapers - and was the subject of two Discovery Channel specials produced by NBC News. Lamar has appeared on CNN, The History Channel and other major television networks. He is the author of several books - including his newest, full of bombshells, Watergate: The Hidden History. June 17th marks the 40th anniversary of the Watergate burglary - and just in time for the anniversary is the arrival of an explosive new book that sheds new light on the scandal and on President Nixon.