Original caption: U.S. President George W. Bush will have a colonoscopy June 29, 2002 and will be under sedation while power of the presidency is temporarily transferred to Vice President Dick Cheney. Cheney points to his heart as he announces that he will undergo further testing of his heart and will likely have a pacemaker type device implanted during a news conference at the White House, in this June 29, 2001 file photo. REUTERS/Win McNamee
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