Pentagon gave polygraph tests to high-ranking officials to find leakers: Reports

The U.S. Defense Department administered polygraph tests to numerous senior-level personnel as part of a comprehensive effort to identify the sources of classified disclosures that had reached the media. The examinations, conducted in August, targeted members of the Joint Staff alongside other military officers and Pentagon civilian staff members seeking to stem unauthorized communications about defense matters.

The investigation centered on leaks involving assessments of military weapons inventory levels in connection with operations and tensions involving Iran. Such disclosures can compromise national security by revealing operational capabilities and constraints to foreign adversaries, making the Pentagon's effort to identify and prevent further breaches a significant institutional priority.

The use of polygraph testing represents a heightened internal security response typical of sensitive leak investigations. These examinations serve as a tool to help investigators narrow the field of potential sources among personnel with access to classified materials and communications with media contacts.

The widespread testing of Joint Staff members—among the most senior uniformed and civilian defense leadership—underscores the significance the Pentagon placed on resolving the matter. Such broad-based testing also demonstrates the challenge military leadership faces in balancing security imperatives against the need to maintain working relationships and institutional cohesion at the highest levels of the defense establishment.

The investigation reflects ongoing tensions between transparency and operational security within the U.S. military, particularly regarding weapons readiness and strategic positioning during periods of heightened international tension.