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Aldrich  Ames was given routine lie detector tests periodically by his employer, the U.S. Central Intelligence Agency, on every occasion he passed the test. Yet at the very same time his truthfulness was being vouched for by the lie detector, he was involved in high – level spying for the russians.

          No surprise, at least among researchers who study the validity of lie deterctor test results. Repeatedly, lie detectors have proved to ve unreliable indicators of lying Read the rest of this entry »