CATCH ME UP
About 50 military and civilian personnel on the Joint Staff were reportedly subjected to polygraph tests in August as part of a leak investigation.
The inquiry centers on whether classified details about dwindling U.S. weapons stocks, including long-range precision missiles and Patriot interceptors, were shared with the media during the war with Iran.
Several reports say the testing followed news coverage of ammunition and weapons shortages, and one account described the mass testing as highly unusual.
Pentagon spokesman Sean Parnell said the department takes leaks of classified national security information seriously but declined to comment on specific personnel matters.
More context
The reports say President Trump has taken a hard line on the disclosures and has called critical media coverage treasonous.
Republican Senator Thom Tillis criticized Defence Secretary Pete Hegseth and called on Trump to replace him.