Ilya Somin, a law professor at George Mason University, writes: Apropos the conservatism and "stupidity" issue, you may find interesting the attached data from my analysis of the 2000 National Election Study (the NES is the most comprehensive US survey of political attitudes and knowledge, which breaks down political knowledge by strength of party affiliation. Note that "Strong Republicans" have much higher political knowledge levels than any other group. The 3.3 gap on a 31 point scale between "Strong Republicans" and "Strong Democrats" may not seem like much, but it is the equivalent of that created by a difference of...