His win over Watson made him a household name among the public. So hopefully, the voting public in the US knows enough about him (and the fact that he is a physicist) to at least pay attention to what he has to say.
And being a nuclear physicist and someone who knows about nuclear reactions intimately (certainly more than the talking head Michio Kaku on TV), he has an expert and unique perspective on the nuclear crisis going on in Japan, and the whole idea of energy source and consumption. This is what we get in this news article. So read it while you have a chance.