Regarding this story from yesterday, a study summarized in a science blog and printed in "Nature" shows that testosterone, contrary to popular belief, does not cause aggression, egocentric, nor risky behavior. A game was played by the test subjects whereby those administered a dose of testosterone actually played more fairly. The scientists think that testosterone might cause an increase in sensitivity to status.
Not that I think we should use science to create legal or corporate policies that discriminate based on gender... I just think this scientific study beautifully demonstrates the importance of carefully considering environment before calling observed behavior gender-specific. In relation to the recent financial blunders on Wall Street and how they have been blamed on typical "male behavior", this article reinforces that all we need is more regulation and accountability.