The Department of Homeland Security (DHS) is using polygraph tests to figure out who could be leaking information to news outlets, with some agency officials contending the disclosed information has ...

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 ...

The National Academy of Sciences conducted an analysis of the Department of Energy’s security screening policy and published the report “The Polygraph and Lie Detection” (NAS Press) in 2003. The ...

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 ...

SALT LAKE CITY (KUTV) — Police call lie detector tests an effective tool. However, one lawmaker doesn’t want police to use them on sex assault victims in Utah ever again, even if the victim wants it.

In February of 1994, the FBI arrested Aldrich Ames, who had been a CIA employee for 31 years. Ames was arrested and charged with espionage. He was a Russian spy. For nine years, he had been passing ...