Archive · 5 Sep 2026
Why 50 Joint Staff Personnel Face Polygraph Exams
The U.S. military is investigating reports that secret information may have been leaked.
As part of the investigation, 50 people working with the Joint Staff took polygraph exams.
A polygraph is a test intended to help assess whether someone is telling the truth.
Taking the test does not mean those people caused the leaks.
Officials said protecting classified information helps keep the country and deployed troops safe.
The available report does not identify who leaked anything.
It also does not say whether anyone has been punished.
More information about the investigation was not immediately available.
An investigation into reported leaks has involved polygraph examinations for 50 Joint Staff personnel.
The examinations do not establish that any tested personnel were responsible for the reported leaks.
Officials said protecting classified information is essential to U.S. security and troops deployed worldwide.
The investigation’s additional details were not immediately available.
It was unclear whether disciplinary action had been taken.
- Who
- Fifty Joint Staff personnel underwent polygraph examinations; the investigation concerns reported leaks of classified information.
- What
- The U.S. military is conducting a leak investigation that includes polygraph examinations.
- When
- The timing is not specified in the available report.
- Where
- The report concerns the United States and troops deployed around the world; a specific examination location is not given.
- Why
- Officials said securing classified information is critical to U.S. security and the safety of deployed troops.
- People examined
- 50 Joint Staff personnel
- Investigation focus
- Reported leaks of classified information
- Testing method
- Polygraph examinations
- Responsibility established
- No; the examinations did not establish that any tested personnel caused the leaks
- Official rationale
- Protecting classified information is critical to U.S. security and deployed troops
- Disciplinary action
- Not immediately known
- Additional details
- Not immediately available