Tango Down: The Last Flight of St. Nicholas

(This story is inspired by this article in the Boston Globe about changes made to NORAD’s popular “Santa Tracker” program.) The jolly old elf known to many as “Kris Kringle” and to the United States government as “Threat Vector 19” crossed into American airspace at 0520 Zulu just north of Duluth, Minnesota. A pair of F-22…