Pentagon Polygraphed ~50 Joint Staff Officials in Leak Hunt

The Pentagon administered lie-detector tests to dozens of Joint Staff members in August as part of an unprecedented investigation into munitions-stockpile leaks.

Pentagon investigators administered polygraph tests to dozens of military officers and civilian employees in August as part of an investigation into disclosures about the nation's dwindling weapons stockpiles. According to The New York Times, roughly 50 members of the Joint Staff were examined, while CBS News reported that several dozen officials, including some from U.S. Central Command, were tested earlier in the summer. The tests followed Defense Secretary Pete Hegseth's July announcement of a joint task force with the Department of Justice to identify and prosecute what he called the "unauthorized disclosure of sensitive" information to the press. Pentagon spokesman Sean Parnell said the department does not comment on investigative matters but "takes all leaks of classified national security information extremely seriously and investigates accordingly."

While polygraphs are routine for intelligence-agency vetting and special-access programs, The New York Times reports that nothing comparable has been carried out across the upper ranks of the U.S. military in modern history. According to TIME, David Pozen, a Columbia law professor, pointed to historical precedents such as President Reagan's 1983 authorization of polygraphs in leak investigations and the FBI's interviews of nearly 100 congressional intelligence staffers under President George W. Bush, but noted that operations involving dozens of senior military officials appear exceedingly rare. CSIS senior adviser Mark Cancian told TIME that he characterized a polygraph hunt of this scale as incredibly unusual, noting polygraph use is more common at intelligence agencies than among senior military staff.

The investigation stems from July news reports that supplies of critical munitions, including long-range precision-guided missiles and Patriot interceptors, had fallen dangerously low amid the ongoing war with Iran. President Trump denied any shortage in an Aug. 6 Truth Social post, writing that the U.S. has "massive amounts" of munitions and calling for lengthy jail sentences for leakers. According to TIME, The Washington Post reported that Trump clashed with Hegseth at Camp David on July 31, claiming he had been misled on the shortages. The Center for Strategic and International Studies estimated in late July that Patriot inventories had dropped below 1,000 and THAAD inventories stood at about 250 — figures CSIS's Mark Cancian says his team derived from entirely unclassified sources.

CBS News reported that no one failed the questions intended to determine whether officials had leaked to the media, and the Pentagon has not disclosed the investigation's findings. Sources told The New York Times that the tests appeared intended not only to identify a leaker but also to deter future disclosures. Experts warn of consequences for internal candor: Cancian told TIME that meetings may get smaller and officers may hesitate to put concerns in writing, while former defense intelligence official Harrison Mann argued that adversaries like Iran can already roughly estimate U.S. stockpiles from unclassified production and battlefield data. The episode is part of a broader crackdown under Hegseth, who per Al Jazeera has restricted journalists' access to the Pentagon and seen at least 80 senior officials removed or passed over.