The Machine That Could Not Be Killed: Structural Survival and the American Polygraph

For sixty years, authoritative scientific and congressional bodies have found the polygraph’s accuracy insufficient for personnel security screening. Across the same decades the American intelligence community built a permanent screening apparatus around it. This article argues from the official record that the persistence is structural rather than evidentiary. Two conditions shape the fate of a capability imported into a security institution: whether its mandate is generative, banking knowledge over time, and whether its practitioners are positioned advisorily or operationally. The polygraph meets both and displays every signature of institutionalization; because its output meets no external check, it also displays immunity to disconfirmation. The Ames and Hanssen cases, the Department of Energy’s post-2003 contraction, and comparisons with forensic science and medicine test it against rival explanations.