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Reuters investigative reporters Steve Stecklow and Gavin Finch recently sat down with exiled Iranian opposition figure Reza Pahlavi, the son of Iran’s last shah, for a rare and wide-ranging interview. Listen to that interview in this episode of On Assignment and go behind the scenes of how the story and interview came about.

Read their special report here: Regime change? Inside Reza Pahlavi’s faltering bid to lead Iran