Anna Wintour: International Woman of Mystery

WASHINGTON, DC - MARCH 14: Anna Wintour, editor-in-chief of Vogue magazine, arrives for a lunch hosted in honor of Prime Minister David Cameron at the State Department on March 14, 2012 in Washington, DC. Cameron is on an official visit to Washington, where President Obama will host him at a State Dinner tonight. (Photo by Brendan Hoffman/Getty Images)