The Pentagon has launched a wide-ranging investigation into the source of leaks revealing dwindling US ammunition reserves. Approximately 50 members of the Joint Staff underwent polygraph examinations in August as part of the effort to identify who may have been sharing classified information with the media. The "New York Times" reported on the unusual step, highlighting the seriousness with which the Pentagon is treating the breaches. Officials are concerned about the potential damage caused by the disclosure of sensitive details about US military readiness. The use of polygraphs indicates a high level of suspicion and a determination to stop further leaks. The investigation aims to secure sensitive information and maintain operational security. No further details about the leaked information or the results of the polygraph tests have been released.