First lady Michelle Obama walks up to the microphone to speaks in the East Room of the White House in Washington, Wednesday, Nov. 28, 2012, to welcome military families during a preview of the White House holiday decorations. The theme for the White House Christmas 2012 is Joy to All. (AP Photo/Susan Walsh)

Photo by: Susan Walsh

First lady Michelle Obama walks up to the microphone to speaks in the East Room of the White House in Washington, Wednesday, Nov. 28, 2012, to welcome military families during a preview of the White House holiday decorations. The theme for the White House Christmas 2012 is Joy to All. (AP Photo/Susan Walsh)