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	Podcast:		Stuff You Should Know
	Episode:		SYSK Selects: How Lie Detectors Work
	Category:		Society & Culture
	Duration:		00:28:24
	Publish Date:		2019-05-11 09:00:00
	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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.
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