This one is laughably full of holes, but a couple of points that struck me:
Yeshua bar-Yusef (Jesus' Hebrew name) was one of the most common Jewish names that existed around 1 B.C. Yudah was only slightly less common. Finding the tomb of a Yudah bar-Yeshua and insisting it is that of the son of Jesus is roughly akin to randomly pointing at someone named John Smith and insisting he is your long-lost cousin.
James Cameron, noted idiot, tells us statistical evidence and DNA back up the claim. I find it ironic that agnostics and Jesus skeptics have been telling us for years that there is no physical or scientific evidence to prove Jesus ever existed, yet now when they dig up some goober with a theory that shreds fundamental Christian belief, suddenly the evidence was there all along. I would be hugely interested to see this "statistical" evidence. Just a note for accuracy: it can't be demonstrated statistically one way or the other that James Cameron exists. And whose DNA are we testing? Did we find some remains of Jesus' long lost ancestors? I know, we must have dug up the Merovingians.
I don't know which is more insulting, the fact that these fools incessantly strive to attack Christian beliefs or that they think we are all stupid enough to believe any of their nonsense.