I think (?) I or someone posted the underlying article - a re-think from the author:
http://slate.msn.com/id/2089756/ [contains a link to the original column, too.]
Articles like these things are the reason I still bother to read Slate. Their news and politics analysis is usually pretty idiotic, but they sometimes find weird interesting topics and do a (usually pretty sensible) little write up on them. They're willing to take an idea and just noodle around with it. Anyhow, I've found this one interesting.