The Federal Bureau of Investigation (FBI) has found itself embroiled in a rather odd situation involving polygraph tests. In April, it confirmed to NPR that it was using these tests to catch personnel ...

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 ...

National security agencies across the Trump administration are ramping up investigations into alleged leaks to the news media, in some cases using polygraph tests that current and former officials say ...

Polygraph exams are commonly called "lie-detector tests" but experts say that's not true. The FBI and other agencies are using polygraphs to find leakers. But do they work? Federal agencies have ...