A video of a dance battle between a young customer and a TSA agent is going viral. The clip shows Newark Airport TSA officer Joshua McCall matching moves with a boy while his family was being screened to fly. Thousands have looked at the video of the officer and child flossing, a dance focused on fluid arm-swinging. Tom Carter, TSA's Federal Security Director for New Jersey, says his officers will be happy to accept dance challenges from passengers once they pass security.