One of the scientists who did the carbon 14 testing back in 1988 said before he died in 2005 that he thought they may have made a mistake. Their sample from the shroud was contaminated with cotton fibers that had been used to repair the shroud. The Daily Telegraph reports here.
This combines with a new finding in the Vatican library that suggests that the Knights Templar had the shroud and venerated it in secret for a long time before it’s appearance in the 14th century. We watched The Passion of the Christ last night, and it was cool to see that James Caviezel’s make up was designed to make him look like the man on the shroud.