'Bring Them Home' tells one American hostage's story; History of vaccine skepticism

Emad Shargi is an Iranian-American businesses man who has been detained in Iran under unsubstantiated espionage charges since 2018. Shargi is the subject of the new documentary "Bring Them Home." Co-director Kate Woodsome joins us. And, "Endless Thread" hosts Amory Sivertson and Ben Brock Johnson dive into the history of vaccines and vaccine hesitancy.