Cast List: How Lie Detectors Work

How Lie Detectors Work

Stuff You Should Know

Episode: How Lie Detectors Work
Website: Stuff You Should Know
Feed URL: http://www.howstuffworks.com/podcasts/stuff-you-should-know.rss
Duration: 00:31:13
Published: 2011-09-01 19:21

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.

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