President George W. Bush limo is pictured in front of 10 Downing Street in London June 15, 2008
Mounted police ride past a pub opposite Downing Street during a social dinner hosted by British Prime Minister Gordon Brown for U.S. President George W. Bush at 10 Downing Street in London, June 15, 2008
Police officers detain a protester in Whitehall as President George W. Bush and first lady Laura Bush participate in a social dinner with British Prime Minister Gordon Brown at nearby 10 Downing Street June 15, 2008
Britain's Prime Minister Gordon Brown, left, talks with U.S. President George W. Bush, right, as first lady Laura Bush, center, walks away on the doorstep of 10 Downing Street, London, late Sunday June, 15, 2008 after a social dinner.
Britain's Prime Minister Gordon Brown, center, says goodbye to President George W. Bush, right, and first lady Laura Bush, second right, watched by his wife Sarah on the doorstep of 10 Downing Street, London, Sunday June, 15, 2008