Sontag reads from "Illness as Metaphor" and discusses differences between diseases, particularly tuberculosis and cancer, regarding historic understanding and cultural representation.

Maude DeVictor, a Veterans Affairs worker, talks about how she discovered Agent Orange after a Vietnam Veteran's widow called asking for help. DeVictor recalls her time spent calling Universities and Government Agencies trying to figure out what chemical caused the cancer and then trying to bring light to her discoveries. Studs reads two passages from Jacques Cousteau's "The Cousteau Almanac: An Inventory of Life on our Water Planet."

Making people aware that toxic chemicals in our everyday lives can cause cancer has been one of Dr. Samuel Epstein’s main goals. According to his book, “The Politics of Cancer,” the government really won’t step in until there is a public outcry.

Dr. Ronald Glasser talks about his book "The Greatest Battle," which explores cancer and the environmental factors that can cause it. He talks about smoking, food additives and diet, infectious diseases, and germs.