Terry Gross

Matthew Alexander, a pseudonym for the author, was a military interrogator in Iraq who rejected previously used harsh techniques. He writes about how his team hunted down two key al-Qaida operatives in Kill or Capture.

Neurologist V.S. Ramachandran, a pioneer in the field of visual perception, explains how his simple experiments in behavioral neurology have changed the lives of patients suffering from a variety of neurological symptoms in The Tell-Tale Brain.

Ed Helms plays a paper pusher on The Office and an insurance salesman in the new comedy Cedar Rapids — but on Thursday's Fresh Air, he plays the banjo. With his band The Lonesome Trio, he joins Terry Gross for an in-studio performance and a chat about his latest film.