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 ...

“The polygraph has been weaponized and is being used against individuals who have never had a polygraph requirement, whether pre-employment or security, in their entire federal careers,” said Mark ...

The polygraph is not a lie detector but rather an instrument that measures a person’s physiological changes to questions posed by the examiner. An elevated physiological response to a particular ...

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 ...