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> Bureaucratic usefulness, rather than any scientific validity, goes a long way toward explaining why the polygraph became a standard instrument of the American national security state.

In other words, it's pseudo-scientific bullshit.

meh. it's biometrics. How the data is incorporated into the subjective interrogator's experience and knowledge framework is where the weakness is. But don't blame the robot. IOW, the polygraph is just outputting data, the rigor of applying the data suffers from underdeveloped understanding, but if I were an interrogator I'd much rather have biometric data in my back pocket than not.

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