LONDON, UNITED KINGDOM - DECEMBER 18: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Queen Elizabeth II is greeted by British Prime Minister David Cameron on the doorstep of Number 10 Downing Street as she arrives to attend the Government's weekly Cabinet meeting on December 18, 2012 in London, England. The Queen's visit to the weekly Cabinet meeting as an observer is the first time a Monarch has attended the meeting since Queen Victoria's reign. (Photo by Indigo/Getty Images)
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