When did Horizon Season 17 Episode 9 air?
Horizon Season 17 Episode 9 aired on March 17, 1980.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 17 · Episode 9
Portrait of a Poison
Mar 17, 1980·1h
Documentary report on the mounting evidence of the horrifying effects of the use of dioxin as a defoliant in Vietnam and as a herbicide in domestic use on both humans and all other living beings.
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How long is Horizon Season 17 Episode 9?
This episode runs for approximately 60 minutes.
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