3 of 20: The official White House Christmas tree, an 18-foot-6-inch Frasier fur from Jefferson, N.C., is trimmed with ornaments decorated by children of military families in the Blue Room of the White House in White House in Washington, Wednesday, Nov. 28, 2012, during a preview of the holiday decorations. The theme for the White House Christmas 2012 is Joy to All. (AP Photo/Susan Walsh) (AP Photo/ Susan Walsh)

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