Time has flattened our understanding of the 9/11 terror attacks. There’s a sense that they came out of the clear blue sky of the day itself. They didn’t. We'll revisit the evidence and question the people at the center of the story. Voices featured in this trailer include Jim O’Grady, Cofer Black, Steve Simon, John Anticev, Huthaifa Azzam, Michael Scheuer, Emad Salem, Mary Jo White, Cynthia Storer, and Matthew Besheer.  The first two episodes drop Wednesday, September 9. Subscribe now.