Asked what the gravest threat to the economy is: <a href="http://money.cnn.com/galleries/2008/fortune/0806/gallery.mcain_obama.fortune/2.html" target="_blank">http://money.cnn.com/galleries/2008/fortune/0806/gallery.mcain_obama.fortune/2.html</a> McCain: "Radical Islamic extremism." Obama: "Our energy policy ... demand is clearly outstripping supply." One gets it. The other doesn't even try. <!--Beg_Sig-->