Further spurred by another negative polygraph experience, the resulting deep dive on polygraphs and examination methods ...

(CNN) — A polygraph, or lie detector test, given to porn star Stormy Daniels in 2011 shows that she gave truthful answers to the questions: "Around July 2006, did you have vaginal intercourse with ...

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 ...

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. When President Ronald Reagan’s White House threatened thousands of government ...

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 ...