For nearly a century we've been trying to read someone's truthfulness by the way they act. Be it through machines, or our own intuition. The police have tried. The FBI has tried. The CIA has tried. But the fact is… most of their efforts just don't work. 
Are we doomed to ignorance? Maybe not.
We talked to forensic psychologist Andy Morgan about the difficult truth regarding the industry around lying.
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Episode transcripts are posted on our website.
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