July 12 (Bloomberg) --In today's top headlines, Duke Energy faces regulators, SuperValu stock plunges, and P&G soars on the approval of an Ackman stake. Pimm Fox reports on Bloomberg Television's "Taking Stock." (Source: Bloomberg)
Polygraph Expert Shows How to Beat a Lie Detector Test
26:15 - Doug Williams is a former Oklahoma City detective sergeant. As an officer in the department's internal affairs and polygraph unit, he conducted thousands of polygraph tests. In the late 1970s, however, Williams began to doubt that the so-called lie detector actually is such a thing, and within a decade he had evolved into one of the most vocal, visible, and theatrical critics of the polygraph. Williams shows Bloomberg exactly how simple it is to manipulate, and beat, the lie detector test. (Video by Jennafer Savino and Justin Beach) (Source: Bloomberg)
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