WASHINGTON, DC - MAY 7: Queen Elizabeth II attends a State Dinner at the White House on the fifth day of her USA tour on May 7, 2007 in Washington, DC. (Photo by Tim Graham/Getty Images)

WASHINGTON, DC - MAY 7: Queen Elizabeth II attends a State Dinner at the White House on the fifth day of her USA tour on May 7, 2007 in Washington, DC. (Photo by Tim Graham/Getty Images)