Postrel, Kass, and Kidneys

Instapundit notes that Virginia Postrel is giving a kidney to a friend, but quotes her to the effect that "unless people like Leon Kass get their way, this will be an obsolete procedure in the not too distant future".

And if people like Kass get their way, it may still be an obsolete procedure in the not too distant future, for the opposite reason. If Kass is as negative on the notion of extending life in general as Glenn says he is, then that negativity should apply not only to yet-to-be-developed technologies, but also to ones that we are already using, such as kidney transplants – or penicillin.