In what has been described as the biggest intelligence leak since Edward Snowden, Al Jazeera has begun publishing a series of spy cables from the world’s top intelligence agencies. In one cable, the Israeli spy agency Mossad contradicts Prime Minister Benjamin Netanyahu’s own dire warnings about Iran’s ability to produce a nuclear bomb within one year. In a report to South African counterparts in October 2012, the Mossad concluded Iran was “not performing the activity necessary to produce weapons.” The explosive disclosure comes just as the United States and Iran have reported progress toward reaching a nuclear deal, an outcome Netanyahu will try to undermine when he addresses the U.S. Congress next week. We go to Doha to speak with Clayton Swisher, the head of Al Jazeera’s investigative unit, which broke the Iran story and several others in a series of articles called, “The Spy Cables.”

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