A recent polygraph test taken in Orange County, Calif., has brought the validity of polygraphs — also called “lie detector tests” — into question. Even though some police departments and ...

Federal agencies have stepped up their efforts over the past few weeks to find potential leakers, and some — like the FBI, the Department of Homeland Security and the Department of Defense — are ...

WASHINGTON – The federal government should not rely on polygraph examinations for screening prospective or current employees to identify spies or other national-security risks because the test results ...