An AI lie detector is a budget request, not proof

What the source reports

Amit Katwala reports that the Department of Defense has asked for $30.3 million over five years for Polygraph+. The proposed program would combine AI scoring with body signals collected from a distance. Experts interviewed for the article warn that there is no proven body signal that always shows deception. If the basic measure is weak, adding more sensors and a model may give a false sense of certainty. Experts interviewed warn that false accusations are a risk in high-stakes screening. The money is a request, not an approved deployment. The report does not show that Polygraph+ works. A signal about stress is not a finding that someone lied.