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.

Presenting a rebuttal to editorials opposing the nuclear arms freeze with Dr. Jack Geiger, Dr. George Kistiakowsky, Dr. Herbert (Peter) Schoville and Dr. Kosta Tsipis of MIT.