Iran intensifying crackdown on dissent, Nobel laureate says

Iran announced it would suspend cooperation with the U.N.’s nuclear watchdog, likely preventing a review of the damage done to its nuclear sites and setting Washington and Tehran on another collision course. It comes as Iran has launched a massive operation to find Israeli spies. Nick Schifrin spoke with Iranian Nobel laureate Narges Mohammadi, who describes it as a harsh crackdown on all dissent.