Pentagon administers polygraphs to 50 Joint Staff officials after munitions leak

Polygraph examinations at the Joint Staff

The Department of Defense subjected approximately 50 military officers and civilian advisory staff from the Joint Staff to polygraph examinations during August. The testing involved planners and advisors who coordinate worldwide operations with combatant commands. Between 1,500 and 2,000 personnel work for the Joint Staff at the Pentagon. General Dan Caine, the chairman of the Joint Chiefs of Staff, was not among those required to undergo the examination. CBS News reported that several dozen individuals had also undergone testing earlier in the summer, including officials within United States Central Command.

Inquiry into ammunition stockpile disclosures

The polygraph effort is part of an investigation into unauthorized disclosures regarding American weapons inventories. News reports in July indicated that the military began rationing munitions, specifically Patriot interceptors and long-range missiles, following months of military engagement with Iran. The reports coincided with the United States pausing strikes against Iranian targets. Investigators from the Department of Justice and the Federal Bureau of Investigation questioned personnel about whether they knowingly shared classified logistics data with journalists. The inquiry aims to establish the source of the disclosures and deter future leaks across the defense apparatus.

Administration response and leadership statements

The Trump administration rejected the assertion that munitions stocks are depleted, stating that the country holds substantial reserves. President Donald Trump accused unnamed personnel of delivering treasonous statements to the press, though he recognized that certain specialized inventories are limited.

Of some of the advanced stuff, we would certainly like to have more.

Pentagon spokesperson Sean Parnell refused to address internal personnel or investigative matters when questioned by AFP, but stated that the defense department investigates every unauthorized disclosure of classified national security material.

Securing classified information is essential to ensure the security of the United States and that of our troops deployed around the world.

Test results and procedural precedent

Polygraphs evaluate physical reactions, such as blood pressure variations, though the scientific reliability of the procedure remains disputed. While federal agencies regularly use polygraphs for periodic background reviews and security clearance renewals, using the device across dozens of senior staff during a leak inquiry is unusual. Former Secretary of Defense Mark Esper discussed the procedure on Bloomberg.

I have never seen anything like this, it seems to me unprecedented in size. But no administration likes leaks and this one in particular. There are a lot of concerns about classified information on munitions. But they have actually been published for a long time by think tanks, journalists and even former Pentagon members! So we will see what happens.

According to sources familiar with the inquiry cited by CBS News, nobody failed the polygraph questions regarding whether they had leaked classified information to the media. Access to the specific munitions data was restricted to a narrow group of officials within the defense establishment.