In an effort to make its security screenings more effective — the agency has yet to catch an honest-to-goodness terrorist — the TSA implemented a behavioral profiling system called SPOT. The idea is to train agents to recognize certain "suspicious" behaviors to prevent an attack.
Formalized in 2007, SPOT has come at a price tag of $1 billion, but a lawsuit from the American Civil Liberties Union (ACLU) alleges that the screening techniques are "discriminatory, ineffective, pseudo-scientific, and wasteful of taxpayer money."
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