Discussing the book "An Anthropologist on Mars: Seven Paradoxical Tales" (published by Knopf) with the author, neurologist Dr. Oliver Sacks.

Aileen and Eugene Smith discuss their photographic essay book, "'Minamata', Words and Photographs," documenting the mercury poisoning of residents and their legal battles with the polluting company Chisso.

Discussing health hazards in work environments and environmental pollution. Interviewing Dr. Bertram Carnow and Bob and Joan Ericksen.