It's been ten years since letters containing anthrax killed five people and sickened 17 others. The nation was in a state of panic and the FBI made it their priority to find the culprit. Eight years later, it did. They accused Dr. Bruce Ivins, an Army anthrax specialist , whom investigators believed had the knowledge and ability to create the anthrax and - who was troubled enough psychologically - to have a motive. Ivins killed himself before he was formally charged. Now, a joint Frontline/ProPublica investigation reveals new evidence that may point to Ivins being innocent. Propublica reporter Stephen Engelberg talks to Madeleine. Also, it's New Music Tuesday. NPR critic Ann Powers reviews new releases from Joe Henry, Rachael Yamagata and Bjork. Plus, the latest news.