Pentagon Polygraphed About 50 Joint Staff Officers in a Hunt for the Source of Reports That the Iran War Drained U.S. Munitions

The New York Times reported on September 4, 2026 that investigators gave polygraph examinations to about 50 members of the military's Joint Staff last month, asking whether they had given reporters classified information about depleted U.S. stocks of long-range missiles and Patriot interceptors. CBS News, citing officials briefed on the matter, reported that several dozen people were tested earlier in the summer, including some U.S. Central Command officials and other combatant commanders, that no one failed the questions about leaking, and that Joint Chiefs Chairman Gen. Dan Caine was not polygraphed.

Polygraphs are routine for clearance recertification, but experts quoted in the reporting called testing at this scale and seniority unprecedented. The examinations followed the Pentagon-Justice Department leak task force Defense Secretary Pete Hegseth announced in July, and they target disclosures about the material costs of a war Congress has not authorized.

Chief Pentagon spokesman Sean Parnell declined to comment on investigative matters, saying only that the department takes leaks of classified information "extremely seriously." No charges have been reported.