Noakes is a scientist of top-level international reputation but he is misusing that reputation for political purposes.
Did Dr. Catlin use his scientific reputation to defend Gatlin or Marion Jones?
My opinion of Noakes just dropped about five levels. And given some of his comments, I have to wonder if he is connected with the corrupt management of the South African Federation.
Most of his comments constitute politcal red herrings. Nobody is suggesting that Usain Bolt is not male or that he should not be able to compete due to certain genetic advantages (drugs are a different matter). But "It" has been shown to produce higher levels of androgynous hormones, at least according to the press story from some months ago. We do not ban males that produce higher levels of such hormones, but we DO ban them from competing as females.
If Semenya, with male characteristics, wants to continue competing, fine. Let "It" compete as a male.