Along with Stephen Hawking, I think it's reasonable to say Dr. Kaku is one of the "faces of modern science and physics" to many people - he seems to be everywhere talking about science and trying to spark interest among young students. Is it really fair to make these comparisons? He's out there using his star power to promote science to US students - not selling cars or running for office.I've got to agree with the others. Being an expert in his field doesn't make him an expert on things outside his field. That's a common flaw people make in judging others and why advertisements using famous sports stars work so well. "Anybody who can throw a pass as good as Peyton Manning has to know what car is best to buy!" "If Sean Penn is voting for this guy and he has to know what he's talking about - he played a politician in a movie!" "I saw Fred Thompson in Law and Order and I know he'd make a great President"