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. (120 minutes)
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UPCOMING EPISODES
Fri, 10/2 at 1:30 am on Austin PBS HDTV
(120 minutes)
Fri, 10/9 at 1:30 am on Austin PBS HDTV
(120 minutes)