Tom Acemoglu commented on an article, Science still can’t explain Shroud of Turin, researcher says, appearing in the National Catholic Reporter. It warrants more attention:

I have far more respect for someone who studies something as culturally potent as the Shroud of Turin and can say "we just can’t tell where it came from". This isn’t a claim to faith, but an openness that maybe it can’t be explained away so simply. To deny the possibility that this the shroud is legitimate is not to stand on the intellectual high ground, but in the same philosophical muck as fundamentalism. Positivism IS a kind of fundamentalism.

For me, the Shroud is at least as potent as the finest icons. Honestly, it’s more so. The blood is real, the negatives of the photographs are shocking, the wounds are consistent with the kind of injuries that Jesus sustained, and recent research has picked up so many peculiar things about it that it has become far more difficult to be satisfied with the explanation that it’s a clever medieval trick. Read up on it, if for no other reason than to experience a profound meditation on why the Resurrection and our redemption did not come cheap.