LONDON, ENGLAND - JUNE 05:  Police stand outside of King Edward VII Hospital where Prince Philip, Duke of Edinburgh was today admitted with a bladder infection on June 4, 2012 in London, England. The Duke of Edinburgh was taken to hospital from Windsor Castle with a bladder infection and will remain under observation for a few days, subsequently missing the rest of the Diamond Jubilee celebrations.  (Photo by Ben Pruchnie/Getty Images)