NOVA Season 17 Episode 3 1990
NOVA Season 17 Episode 3: Sixty-five years after attempts to ban them, chemical weapons pose more of a threat than ever. NOVA looks at the problem of controlling substances that are easily produced and cruelly effective.
- Aired:Feb 06, 1990
- Seasons:53 · Episodes:1030
- Country:United States of America
- Network:PBS
