From Peter Brouwer:

Re: American head shapes have been changing, but why? (May 14): This sounds like a natural evolution to me -- brains are in... brawn is out. related article:

http://www.newscientist.com/article/dn20663-are-widefaced-men-rascals.html

Seems to me democracy, “open markets”, and traditional American family values all prefer honesty and brains -- even if a wided headed person maybe be smarter or more honest -- the science (and probably our own intuition) is against them in every matter not requiring brawn -- including in opportunities to extend the reach of their genetic legacy.