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First Lady Michelle Obama delivers remarks during an event at American University in Washington, D.C., March 13, 2012. Samantha Cameron, wife of British Prime Minister David Cameron, left, joined the First Lady, Olympic and Paralympic athletes including Lisa Leslie, and Washington, D.C., area children in a mini-Olympics competition to celebrate the 2012 London Summer Olympics and the “Let’s Move!” initiative. (Official White House Photo by Sonya N. Hebert)