On Christmas Eve, a special look at the origins of NORAD's Santa tracker

During the Cold War, Air Force Col. Harry Shoup was one of the commanders in charge of an early warning radar system based in Colorado. It had been set up to detect a possible soviet missile attack on the United States. In this animated conversation from our colleagues at StoryCorps, three of Shoup's children recall a surprising phone call their dad received back in 1955. PBS News is supported by - https://www.pbs.org/newshour/about/funders