This Thursday December 20th at 8/7c on NBC, Meredith Vieira will host a special look at Christmases past and present in the White House, in “A White House Christmas: First Families Remember.” We got the chance to talk to Jenna Bush about some of her favorite Christmas memories in the White House. Hear her reminisce, talk about traditions she wants to carry on with her family, AND how Santa got past the secret service.