It's a Christmas Eve tradition that has delighted parents and children across the U.S. for 70 years now: tracking Santa Claus as he circles the globe, with the help of the North American Aerospace Def...

For 70 years, that’s been the tradition at the North American Aerospace Defence Command (NORAD) — a joint US and Canadian operation charged with monitoring the skies for threats since the Cold War.

Thanks to cutting-edge technology, you'll soon be able to follow Father Christmas as he drops off gifts to children across the globe.