First hour guest, author Warren Getler(1) spoke about the Knights of the Golden Circle (KGC) and the conspiracy to kill Lincoln. The new film, National Treasure: Book of Secrets(2) (for which Getler served as historical consultant) deals with this grand conspiracy. The secretive KGC, composed of Confederates and Masons, were said to bury gold and financially support Lincoln's assassination. Getler shared an 1865 political engraving from the magazine Harper's Weekly with us. The image(3) links Lincoln assassin John Wilkes Booth to the KGC.

1. http://www.amazon.com/exec/obidos/ASIN/0743219694/ctoc
2. http://disney.go.com/disneypictures/nationaltreasure/
3. http://loc.harpweek.com/lcpoliticalcartoons/DisplayCartoonMedium.asp?MaxID=21&UniqueID=21&Year=1865&YearMark=1865