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...

The North American Aerospace Defense Command defends North American airspace 24 hours a day, 365 days a year.

This Christmas Eve, over 1,000 dedicated volunteers will staff the 1-877-HI- NORAD hotline from 4am to midnight Mountain Standard Time, ready to field calls from eager Santa-seekers.