In my first article in this series on the polygraph, I introduced a bit of history about the “lie detector.” Today I’ll review some of the applications of these devices in the 20th century. A report ...

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 ...

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 ...

John Larson's original polygraph, a gift to the Smithsonian from the Berkeley Police Department, where Larson was the first rookie cop with a PhD. Cade Martin In order to catch liars, the ancient ...