And the first link , that of Walter Williams, while it does sort of vaguely address DDT in raptors, doesn’t actually refute the effect of DDT on raptor egg shells, it merely does as the other articles do, go after Rachel Carson for her hyperbole and the damage that the total ban on the pesticide has done.
Near as I can tell the theory [which is not Rachel Carson’s theory] that DDT causes thinning of raptor eggshells still stands.
Banning DDT had caused millions of human deaths, especially by malaria. What exactly is this eggshell thinning theory you trust so much, and where is a link to it?