Naysayers will never believe it. The secular world treats it as little more than a forgery. Some Orthodox consider it a trifle. I don’t. Whether the Shroud of Turin is authentic or not has no bearing on my faith, but if it truly shows the face of Christ, then it is something the our Roman Catholic (and all Christian) friends have every right to venerate if they so choose.
Before It’s News has more on the Italian study of the shroud here.