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Can a lie detector lie?

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Can a lie detector lie?

E
euronews (in English)

1 Views • Apr 23, 2013

Description

Many of us have wondered if we are being lied to or told the truth. In some situations knowing the difference between lies and the truth is really important - such as police investigations, for example. Various methods, including body analysis and psychology, have been tried with various levels of success but none of them are foolproof. One of the best known methods is a "polygraph", a much-...
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