Auxiliary to this, I am an atheist who would simply like to the Shroud to be proven a true historical remnant of Jesus' crucifixion, although I don't see how the age of the Shroud would prove that.
Post by post, building his arguments by smashing a couple of theirs -- for America.
Xians don't believe in Carbon Dating anyway so why bother using that as any kind of proof?
Some people like to claim that something mysterious MUST be going on with the Shroud since no one, including science can verify or nullify anything reasonable in it's regard. The truth however is that you have a large piece of fabric that has been around for a considerable period of time (collecting airborn matter) and has been through at least one fire and the Church is unwilling to allow proper testing for fear of being proven a fake.