"The Colorado fireball comes shortly after a similar event over Canada on November 20th, where over two dozen meteorite fragments have been recovered from agricultural land. We wait in anticipation to see if this huge Colorado fireball produced any similar fragments, but eyewitness accounts will be critical to aid such a search..."
http://www.universetoday.com/2008/12/06/exploding-colorado-fireball-100-times-brighter-than-the-moon-video/
So is this the “normal” frequency for fireballs, or is it a swarm? Predicted? Totally a surprise? Part of the Leonid and Geminid meteor showers that arrive this time of year?
Coincidence? I don't think so.......There's definitely something going on here. (now where did I put that tinfoil...)