The Gundersens worked in the nuclear industry – Maggie in public information, Arnie as an engineer and executive. He was fired from Nuclear Energy Services in 1990. In this conversation, I started by asking them a question that had troubled me for a long time - given that Arnie Gundersen is one of only a handful of whistle blowers. How early did people in the nuclear industry become aware that they were dealing with a monstrously dangerous technology? Produced by TUC Radio.