The Skinny on Human-Animal Hybrids, from PZ Meyers:

[Bush]'s trusting that everyone will think he is banning monstrous crimes against nature, but what he's really doing is targeting the weak and the ill, blocking useful avenues of research that are specifically designed to help us understand human afflictions. His message isn't "We aren't going to let the mad scientists make monsters!", it's "We aren't going to let the doctors help those 'retards.'"

That's certainly a little bit of a downer, though not exactly surprising for Mr. Bush.