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Lie Detectors
Polygraphs are used in thousands of investigations and job screenings. Can a machine really detect whether someone is lying? Penn & Teller will meet people whose lives were ruined by the faulty tests.
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Lie Detectors
Episode 5
Polygraphs are used in thousands of investigations and job screenings. Can a machine really detect whether someone is lying? Penn & Teller will meet people whose lives were ruined by the faulty tests.
