Norad usually monitors aerospace in the event of nuclear attack, but for the last six decades ... his sleigh pulled by reindeer traverses a 3D map of the world in the build up to Christmas ...

But he reached the Continental Air Defense Command, now NORAD, a joint U.S. and Canadian effort to spot potential enemy attacks ... a 60-by-80 foot plexiglass map of North America to track ...

According to its website, NORAD works to prevent air attacks against North America and responds to unknown, unwanted, and unauthorized air activity. NORAD monitors all traffic in North American ...