Yes. According to reporting based on The New York Times, U.S. investigators put about 50 military and civilian members of the Joint Staff through polygraph tests after a series of unauthorized leaks to the press. The exams, conducted in August, focused on whether anyone shared classified details about dwindling U.S. munitions stocks during the Iran conflict, including long-range missiles and Patriot interceptors.
Pentagon spokesperson Sean Parnell told the Times the department takes national-security leaks extremely seriously and investigates them accordingly. Legal and military experts described the scale of the Joint Staff polygraph push as unprecedented in modern U.S. military history.
Source: Al Jazeera (reporting on The New York Times)