Polygraph tests can supposedly detect when a person is lying. But how can a machine do that, and can we really trust the ...

In February of 1994, the FBI arrested Aldrich Ames, who had been a CIA employee for 31 years. Ames was arrested and charged with espionage. He was a Russian spy. For nine years, he had been passing ...

To put this another way, if the polygraph or any other technique for detecting deception is more accurate than guess-work, it does not necessarily follow that using it for screening is better than not ...

The available evidence indicates that in the context of specific-incident investigation and with inexperienced examinees untrained in countermeasures, polygraph tests as currently used have value in ...