AP Photo/Charles Dharapak
Miranda Husband, 11, and Issac Husband, 9, of Greencastle, Pa., roll Easter eggs on the South Lawn of the White House in Washington, Monday, April 25, 2011, at the White House Easter Egg Roll hosted by President Barack Obama and first lady Michelle Obama. About 30,000 people are expected to attend the 133-year-old tradition of rolling colored eggs down the White House lawn.
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Malia Obama, right, Sasha Obama, second right, and other children wait for the starting whistle during the White House Easter Egg Roll on the South Lawn of the White House April 25, 2011 in Washington.
AP Photo/Charles Dharapak
President Obama high-fives children at the White House Easter Egg Roll on the South Lawn of the White House in Washington, April 25, 2011.
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President Barack Obama volleys a tennis ball between his legs while participating in a 'Let's Move' clinic with members of the NBA, WNBA and the Harlem Globetrotters during the White House Easter Egg Roll on the South Lawn of the White House, April 25, 2011 in Washington.
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President Obama shoots a basketball during the annual White House Easter Egg Roll on the South Lawn of the White House in Washington on April 25, 2010.
AP Photo/J. Scott Applewhite
President Obama reads the children's book "Chicka Chicka Boom Boom" to young children at the Easter Egg Roll festivities at the White House, April 25, 2011.
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President Obama shoots a basketball while participating in a 'Let's Move' clinic with members of the NBA, WNBA and the Harlem Globetrotters during the White House Easter Egg Roll on the South Lawn.
AP Photo/J. Scott Applewhite
President Obama, with first lady Michelle Obama and daughters Malia, center, and Sasha, right, their grandmother Marian Robinson at rear, and the Easter Bunny, wave as they arrive for the start of the annual White House Easter Egg Roll festivities, at the White House, April 25, 2011.
AP Photo/Charles Dharapak
President Obama cheers on children rolling Easter eggs at the White House Easter Egg Roll, April 25, 2011, on the South Lawn of the White House.
AP Photo/Charles Dharapak
President Obama blows a whistle at the White House Easter Egg Roll,April 25, 2011, on the South Lawn of the White House.
AP Photo/Charles Dharapak
President Obama attends a basketball workshop with children as part of the "Let's Move" campaign, April 25, 2011, at the White House Easter Egg Roll.
AP Photo/Charles Dharapak
President Obama cheers on children rolling Easter eggs at the White House Easter Egg Roll on the South Lawn of the White House.
AP Photo/Charles Dharapak
Children roll eggs on the South Lawn of the White House in Washington, April 25, 2011, during the 2011 White House Easter Egg Roll hosted by President Obama and first lady Michelle Obama.
SAUL LOEB/Getty Images
Guests watch the singing of the National Anthem on the South Lawn of the White House during the annual White House Easter Egg Roll