Charles Krauthammer is a modern-day renaissance man who has worn many hats and enjoyed tremendous success first as a psychiatrist, then journalist, international relations theorist, and now a commentator.  With the passing of William F. Buckley and Samuel Huntington last year, Krauthammer is arguably the finest conservative thinker around (Newt Gingrich certainly deserves honorable mention).  Cable news is filled with hollow talking heads who do little more than regurgitate liberal and conservative talking points–both sides are guilty of this.  You know, they’re the ones on TV with labels like “Democratic Strategist.”  Hosts, like Keith Olbermann, are the worst.  So insecure is Keith Olbermann in his ability to debate that he never has guests with opposing views on his program.  Krauthammer’s ability to provide valuable…