Robert del Tredici photographer, artist, and author discusses the history of nuclear weapon production plants around the United States and the effects of nuclear radiation.

Jeanne Stellman discusses her book, "Work Is Dangerous to Your Health: A Handbook of Health Hazards in the Workplace and What You Can Do About Them," and workplace safety issues in a variety of industries. Topics of discussion include the importance of prioritizing health in the workplace and consulting workers on workplace safety issues, and industry responses to occupational hazards.