I don't know what Santa feeds his reindeer. That sleigh moves faster than an SR-71 Blackbird. If you don't know about the Blackbird, it's one of the fastest aircraft ever built. It's ability to fly at supersonic speeds, on the edge of Earth's atmosphere made it a valuable military asset. It was difficult to track, and  pursue. Santa, however, is willing to be tracked. He's cooperating the folks at Norad. They're pinpointing his position throughout the annual Christmas Eve flight. If you're anxious to know where he is, and estimate his time of arrival at your home, you can witch live video at noradsanta.org, or call 1-877-Hi-Norad. Merry Christmas!