NORAD tracks Santa every year. So we asked - how does he do it?

The North American Aerospace Defense Command, NORAD, is a United States and Canada bi-national organization which, according to its website, "defends the homeland through aerospace warning, aerospace control and maritime warning for North America."

On Christmas Eve, for the past 70 years, NORAD and its predecessor, the Continental Air Defense Command, track Santa Claus. We spoke with Major Kathleen Leaton about their work helping out the big man.