This clip is Part 6 of a 7-part film. Watch from the beginning
CBS Nightwatch Discussion of Toxic Waste Disposal
Part 12
Introduction to Crefal
Part 3
Excavating a Lake
Part 2
Drugs Are Like That
Part 4
The Information Highway
Part 19
Red Lake: a Reservation Revolution
Part 8
Lake State Exhibit No. 357: Michigan Conservation
Evolution of Man
