Courtesy of Lieutenant Sean Carter
Lieutenant Sean Carter is a public-affairs officer who runs the NORAD Tracks Santa program. The tradition started by accident in 1955, and now an average of 1,500 volunteers help every year. Carter works year-round to prepare for Christmas Eve so people around the world know where Santa is.This as-told-to essay is based on a conversation with Lieutenant Sean Carter, a 32-year-old public-affairs officer for NORAD in Colorado Springs,...