The polygraph machine seeks to separate the truth from lies. But the answers it gives are inadmissible in court, and those who know how can easily trick the machine. The origins of the lie detector and what its use reveals about both subject and administrator.


  • Ken Alder Professor of History and Director of the Science in Human Culture Program at Northwestern University and author of "The Measure of All Things."

Related Links

Topics + Tags


comments powered by Disqus
Most Recent Shows

Friday News Roundup – International

Friday, Oct 02 2015Russia launches another round of airstrikes in Syria. In Afghanistan, fighting with the Taliban continues in Kunduz. And a Palestinian flag flies at the U.N. for the first time. A panel of journalists joins guest host Melissa Block for analysis of the week's top international news stories.

Friday News Roundup – Domestic

Friday, Oct 02 2015Nine people and a gunman are dead after a shooting at an Oregon community college. Bernie Sanders narrows the fundraising gap with Hillary Clinton in the last quarter. And Congress avoids a government shutdown – for now. A panel of journalists joins guest host Melissa Block of NPR News for analysis of the week's top national news stories.