Why does norad track santa claus?

In 1955, a Sears Roebuck store in Colorado Springs, Colorado, provided a number for children to call a "Santa hotline". This number was mistyped and kids called the Continental Air Defense Command (CONAD) on Christmas Eve instead. The Director of Operations, Col. Harry Shoup, answered the first call for Santa and responded by telling children that there were definite signs on the radar that Santa was heading south from North Pole. In 1958, Canada and the United States jointly created the North American Air Defense Command (NORAD) and together tracked Santa Claus for children of North America that year and ever since. This tracking can now be done by children via the Internet and NORAD's website. http://www.noradsanta.org/