Add Yahoo as a preferred source to see more of our stories on Google. American inventor John Larson, right, demonstrates the operation of a polygraph at Northwestern University in Evanston, Illinois, ...

The Department of Homeland Security (DHS) is disputing reports that acting Cybersecurity and Infrastructure Security Agency (CISA) Director Madhu Gottumukkala failed a polygraph after seeking access ...

Add Yahoo as a preferred source to see more of our stories on Google. Defense Secretary Pete Hegseth demanded proof that Adm. Christopher Grady, the then-acting Chairman of the Joint Chiefs of Staff, ...

When President Ronald Reagan’s White House threatened thousands of government officials with polygraph exams, supposedly to protect classified data (but probably also to control press leaks), his ...

Defense Secretary Pete Hegseth demanded proof that Adm. Christopher Grady, the then-acting Chairman of the Joint Chiefs of Staff, hadn’t leaked news of a March 21 classified briefing for Elon Musk on ...