First Lady Michelle Obama participates in a tug of war with Jimmy Fallon in the Diplomatic Reception Room of the White House during a “Late Night with Jimmy Fallon” taping for the second anniversary of the "Let’s Move!" initiative, Jan. 25, 2012. (Official White House Photo by Chuck Kennedy)

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President Barack Obama meets with Secretary of Defense Leon Panetta, Gen. Martin Dempsey, Chairman of the Joint Chiefs of Staff, Combatant Commanders, and other Pentagon officials to discuss the Department of Defense budget, in the State Dining Room of the White House, Dec. 1, 2011. (Official White House Photo by Pete Souza)

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President Barack Obama shows military officials the White House Christmas Tree in the Blue Room following a meeting, Dec. 1, 2011. The 18-foot-6 inch balsam fir was decorated with holiday cards created by military children and ornaments featuring medals, badges, and patches from all of the military branches. (Official White House Photo by Pete Souza)

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President Barack Obama and former President Bill Clinton listen as Gary Le Francois, Senior Vice President and Director of Engineering, leads them on a tour of the Transwestern Building in Washington, D.C., Dec. 2, 2011. The 240,000 square foot office building is undergoing renovations to the façade and internal systems that are expected to raise their ENERGY STAR rating to 95 (out of 100). (Official White House Photo by Pete Souza)

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President Barack Obama and First Lady Michelle Obama greet Kennedy Center honoree Meryl Streep in the Blue Room of the White House, Dec. 4, 2011. (Official White House Photo by Lawrence Jackson)

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President Barack Obama takes a picture of guests Marilyn Arleen Nelson and Glen D. Nelson during the Kennedy Center Honors reception in the Blue Room of the White House, Dec. 4, 2011. (Official White House Photo by Lawrence Jackson)

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President Barack Obama greets Elie Wiesel in the Oval Office, Dec. 5, 2011. (Official White House Photo by Pete Souza)

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President Barack Obama talks with Deputy National Security Advisor Denis McDonough and National Security Advisor Tom Donilon in the Diplomatic Reception Room of the White House, before departing for Osawatomie, Kan., Dec. 6, 2011. (Official White House Photo by Pete Souza)

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President Barack Obama arrives aboard Marine One at Osawatomie-Paola Municipal Airport in Osawatomie, Kan., Dec. 6, 2011. (Official White House Photo by Pete Souza)

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President Barack Obama stands with Sen. Chuck Schumer, D-N.Y., following a meeting with the Senate Democratic Leadership in the Oval Office, Dec. 7, 2011. (Official White House Photo by Pete Souza)

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