Amanpour: Mohammad Javad Zarif, Brian Hook and Naomi Klein

Mohammad Javad Zarif, the Iranian Foreign Minister, joins Christiane Amanpour in New York to discuss the tensions between Iran and the U.S. Brian Hook, the U.S. Special Envoy for Iran, talks about America's hardline policy toward the country. Our Hari Sreenivasan talks to Naomi Klein about legislation that would overhaul the U.S. economy and her new book, "On Fire: The (Burning) Case for a Green New Deal."