Paul Krugman: GOP Plan Only ‘Sounds Serious Because It Hurts Vulnerable People’ Bonnie Kavoussi, huffingtonpost.com In an interview with PBS’ Gwen Ifill on Tuesday, Nobel Prize-winning economist Paul Krugman tore into the GOP’s fiscal cliff proposal and launched a spirited defense of President Barack Obama. Krugman explained that Obamacare has d… http://flip.it/ZuD2u Related articles Paul…