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mit tech review · September 25, 2026

Pentagon seeks $30M for AI-powered lie detector

the us pentagon wants to spend $30.3 million on an ai-powered lie detector called polygraph+ to vet staff and hunt leakers, but experts are skeptical about its effectiveness.

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the us department of defense has requested $30.3 million over five years for polygraph+, a program that uses ai and machine learning to improve lie detection. the technology, also known as polygraph next, will focus on scoring algorithms and standoff sensing to take physiological readings without physical contact. experts, including kyri kotsoglou, a professor at northumbria law school, have expressed skepticism about the project's potential for success. the pentagon has been using polygraph tests to find sources of leaks, with around 50 officers on the joint staff tested in september.

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