U.S. President George W. Bush (3rd R) pats Britain's Prince Charles (2nd L) on the back as he and first lady Laura Bush (3rd L) escort the prince and Camilla, Duchess of Cornwall, into the White House upon their arrival here for lunch Washington, November 2, 2005. The royal couple, on an eight-day visit to the U.S., will be honored at a black tie dinner in the State Dining Room of the White House Wednesday evening. REUTERS/Kevin Lamarque