Daily Show host Jon Stewart fired back last night at economist Paul Krugman over the idea of minting a trillion-dollar coin to work around the debt ceiling. It continued a riff that was forged over the weekend when Krugman slammed Stewart for being "lazy" in satirizing the idea. Stewart mocked Krugman as "the only creature more noble than a freshly felched unicorn" and "the rare gray-bearded urban laureate." He took issue with Krugman calling him "lazy" in a blog post over the weekend, joking that he was "banging it out four days a week, 22 minutes a day!" Stewart then played a clip of Krugman saying Stewart was ... (full story)