Science says you might as well flip a coin.

Lawyers for Alex Murdaugh said an FBI agent conducting a polygraph test that the agency said the convicted killer flunked asked odd questions and confided he had just examined the notorious Dutch ...

Some senior officials who have taken the test have been asked whether they said anything negative about the F.B.I. director, Kash Patel. By Adam Goldman Reporting from Washington Typically, the F.B.I.