Episode 2

Discovery, Would I Lie To You? Episode 2 of 2

Would I Lie to You? Many scientists distrust the traditional lie detectors, like the polygraph with its wires and electrodes stuck to the skin, and say they never reliably reveal a liar. But now companies are marketing voice stress analysers and even brain scanners to do ‘truth verification’. Roland Pease investigates whether the new technologies are any better than the old ones?

Available now

28 minutes

Last on

Thu 20 May 2010 00:32 GMT
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