FBI employees who failed polygraph tests to determine truthfulness still accessed classified information, making the bureau vulnerable to security breaches, Department of Justice Inspector General ...

When President Ronald Reagan’s White House threatened thousands of government officials with polygraph exams, supposedly to protect classified data (but probably also to control press leaks), his ...

Intelligence officials are pushing to classify as secret certain information about lie detectors that they believe U.S. adversaries might use to harm national security, even though much of it has been ...

The Pentagon, which recently promised to put employees through polygraph tests in an investigation into leaks of classified information, is now the source of its own leak. On March 15, Defense ...

When Army engineer David Tenenbaum lost his security clearance after a polygraph, he accused the Defense Department polygrapher, along with others, of targeting him because he's an Orthodox Jew. MCT ...

David Kirk was a career Marine pilot with a top-secret security clearance and a record of flying classified missions. He was in the cockpit when President George W. Bush and Vice Presidents Dick ...

The federal polygraph training academy, known as the National Center for Credibility Assessment, says it has operated in the unclassified domain for virtually its entire existence. The academy, ...