I have been aware of the case against stereotype threat for some time, but wouldn't want to post it under my regular handle (linked to my real name and high-karma). People who try to approach these topics in an even-handed way often lose their jobs or suffer other serious consequences. Mostly I just try to let the discussion die down, since those who might present non-PC evidence are laboring under differential burdens and constraints.
An article in the NYT's about everyone's favourite messy science, you know the one we sometimes rely on to provide a throwaway line as we pontificate wisely about biases? ;)
In any case this brought to my attention by a recent blog entry on iSteve.
Steve Sailer thinks that what gets distorted the most in such a way is a matter of supply and demand. Which is obviously good signalling for him, but is also eminently plausible. One can't help but wonder especially on the interesting connections that exist between some of the "findings" of psychology of a certain period and place the obsessions and neurosis (heh) specific to that society.