Speech is the mirror of the Soul: as a man speaks, so is he.
-- PUBLILIUS SYRUS, Maxim 1073
Chicago Brothel's Lie Detector Fails to Uncover Undercover Cop. A lie-testing apparatus called a "psychological stress
evaluator" . . . was among items seized in a vice raid by
police at a place called the Quest in suburban Des Plaines.
Earlier, an undercover sleuth . . . was required to submit to
such a test while posing as a seeker of a prostitute's
services. (Later) the officer was informed . . . that he had
passed the test and was eligible to avail himself of the
Quest's . . . playmate. As she disrobed, the (police) raiders
struck . . .
-- Chicago Sun-Times, August 17, 1979
During the 1960s, the U.S. Defense Department spent hundreds of thousands of dollars in an eager search for feasible methods of covert lie detection, techniques by which bodily reactions related to stress might be measured without the subject's knowledge. Explaining its interest to holders of research contracts, the department alluded vaguely to cloakand-dagger situations in which an American intelligence officer might be receiving a report from one of his agents who, in turn, might secretly be working for the Other Side. One is entitled to suspect, however, that another source of concern was the adverse verdict of the Moss Committee,