In 1946, a man named David Boder started to investigate the Holocaust before it was known as the Holocaust. He dragged a primitive recording device around Europe and gathered the first recorded testimonials of concentration camp survivors. But his research was largely ignored, and his recordings forgotten for decades. The tapes are broadcast for the first time nationally on tonight's show. Carl Marziali tells the story. (31 minutes). Listen to Boder's recordings, or read transcripts, at their official home on the web.