American Experience
The Lie Detector
A look at the polygraph, a device created by two men in the 1920s that could tell if a person was lying, and how it has transformed police work. (90 minutes)
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UPCOMING EPISODES
Wed, 5/6 at 1:00 pm on Austin PBS WORLD
The Movement and The "Madman"
Two antiwar protests in the fall of 1969 cause President Richard Nixon to cancel his "madman" plans for a massive escalation of the U.S. war in Vietnam. (90 minutes)