End of the World on Saturday, Say Vikings

If you believe the Vikings, we're in for one hell of a weekend. According to some readers of Norse mythology, Ragnarok -- or 'Twilight of the Gods' -- is set to go for February 22nd. The Viking Apocalypse, conveniently enough, coincides with this year's Jorvik Viking Festival in York, England. Festival director Danielle Daglan prepares us for the end....