Anthrax & Polygraphs NPR's David Kestenbaum reports on the differing opinions on the reliability of lie-detector tests. To what extent can they be trusted to reveal the truth in the government's terrorist investigations?
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Anthrax & Polygraphs

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Anthrax & Polygraphs

Anthrax & Polygraphs

Anthrax & Polygraphs

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  • <iframe src="https://www.npr.org/player/embed/1143863/143863" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

NPR's David Kestenbaum reports on the differing opinions on the reliability of lie-detector tests. To what extent can they be trusted to reveal the truth in the government's terrorist investigations?