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How to build your own Lie Detector | The Gadget Show
6:15
Find in video from 00:01Introduction to Lie Detectors
How to build your own Lie Detector | The Gadget Show
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YouTubeThe Gadget Show
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Find in video from 00:26Building the Circuit Board
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Former FBI Agent Explains How to Detect Lying & Deception | Tradecraft | WIRED
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