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Podcast: Stuff You Should Know
Episode:

How Lie Detectors Work
Category: Society & Culture
Duration: 0
Publish Date: 2011-09-01 12:21:29
Description: Instead of actually detecting lies, polygraph machines sense physiological variations, ostensibly brought on by guilt. The results are subject to interpretation, and therefore controversial. Join Josh and Chuck as they investigate the polygraph.
Total Play: 0

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