WASHINGTON, DC – APRIL 25: (AFP OUT) (L-R) U.S. President Barack Obama, first lady Michelle Obama and their daughters Sasha and Malia pose for photographs with children after officially opening the White House Easter Egg Roll on the South Lawn of the White House April 25, 2011 in Washington, DC. About 30,000 people are expected to attend the 132-year-old tradition of rolling colored eggs down the White House lawn. (Photo by Chip Somodevilla/Getty Images)