What’s it like to take on one of the most powerful institutions in the country? Filmmaker Alex Gibney talks to Professor Betsy West about the making of his controversial, duPont-winning film Going Clear: Scientology and the Prison of Belief. He discusses the legal risks associated with taking on the Church of Scientology and the psychological hold the church has on its members.

#3: Joshua Oppenheimer

On Assignment brings you some of the best conversations from the Columbia Journalism School, produced and hosted by the school's Alfred I. duPont-Columbia University Awards.

The duPont-Columbia Awards honor the best in audio-visual reporting across platforms including broadcast, documentary, local investigative, radio and interactive journalism. We started the On Assignment Podcast to go behind the scenes and bring you the conversations we were having with the leading journalists in the field, many of whom are also past duPont Award winners.