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New book details 10 greatest conspiracies

Brad Meltzer, author of  "History Decoded: The Ten Greatest Conspiracies of all Time," talks to Mara Schiavocampo about Fort Knox and the Lincoln Assassination.
/ Source: MSNBC TV

Brad Meltzer, author of  "History Decoded: The Ten Greatest Conspiracies of all Time," talks to Mara Schiavocampo about Fort Knox and the Lincoln Assassination.