(NBC News) Lawmakers are reconsidering funding of a nearly one billion dollar Transportation Security Administration behavior assessment program intended to detect risky travelers after government investigators found no evidence it works.
TSA chief John Pistole spent Thursday morning on Capitol Hill defending his behavioral detection officers, who are hired to look for signs airline passengers could be trouble.
"What we have done in TSA in the U.S. has served as a deterrent," Pistole told Congress.
Still, an investigation by the Government Accountability Office found that the results of the Screening of Passengers by Observation Techniques program, or SPOT, were "no better than chance".
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