A historian details how a secretive, extremist group radicalized the American right (Terry Gross; Fresh Air podcast)

Matthew Dallek says the John Birch Society, which was active from the late '50s through the early '70s, propelled today's extremist takeover of the American right. His new book is Birchers.

Interview: 

https://www.npr.org/2023/05/17/1176662608/a-historian-details-how-a-secretive-extremist-group-radicalized-the-american-rig