Darwinism on the immune system

At Access Research network, David Tyler discusses the supposed origin of the immune system, as per American court rulings:

Dr Behe submitted a letter of response to Science, but has been informed that his letter was not of sufficient interest to publish. The Darwinians are quick to claim a victory over these issues but are simply not able to get beyond speculations about the origin of the immune system. Here is Behe's last paragraph.

"In my court testimony I cited the then-new article by Klein and Nikolaidis, "The descent of the antibody-based immune system by gradual evolution" (Proc. Natl. Acad. Sci. USA 102:169-174, 2005), which first disputed the big bang hypothesis. In it the authors candidly remark, "Here, we sketch out some of the changes that the emergence of the AIS entailed and speculate how they may have come about." Valuable as it might be to science, however, speculation is not data, let alone an experimental result. Students are poorly served when they are not taught to distinguish among them."

But truth, falsehood, nonsense, and speculation all serve Darwinism equally. You would only have a problem if you actually wanted evidence.