ike it has so many times in its long, tortured history, the Shroud of Turin is again, this Easter 2011, resurrected. I don’t use resurrected lightly. If authentic, the ancient linen cloth with mysterious images of a crucified and tortured corpse on its fibers is tangible proof to many Christians of Jesus’ rise from the dead. And while authenticity is certainly still in debate, the burden of proof now — at least on the Shroud’s inexplicableness — has shifted to the doubters. The 14-foot-long shroud can be traced to at least 1354, when it appeared in a church in Lirey,...