Sima Vaisman, a young doctor, escaped the persecution of Jews in her native Moldava only to be captured by the Nazis in France and sent to Auschwitz. After her liberation, she sat down and detailed her experience. Using a physician's detached language, she described the horrors she'd seen and was the first person to report precisely how the gas chambers worked. Afterwards, she put the testimonial in a drawer and refused to talk about it. 40 years...