President Barack Obama and Family Arrive at Palacio do Alvorada in Brasilia, Brazil

President Barack Obama, First Lady Michelle Obama, and daughters Sasha and Malia are greeted by Brazilian President Dilma Rousseff and Foreign Minister Antonio Patriota, right, upon their arrival at the Palacio do Alvorada in Brasilia, Brazil, March 19, 2011. (Official White House Photo by Pete Souza)

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• March 2011: Photo of the Day