 I featured Ira Glass on the last episode of Sound School. It was a talk he gave on audio storytelling and reporting at a radio conference back in 2001. This American Life, the show Ira started, was just a babe in the woods at the time. It was only six years old. So a long time ago. In that talk, Ira laid out his thoughts on story structure. And he said, often stories on public radio are assembled as a series of arguments and ideas.