REGISTER A FREE ACCOUNT TO WATCH MOVIES IN HD

Video Sources 109 Views

  • Server 1Server 1
  • Server 2Server 2

Penn & Teller: Bullshit! Season 7 Episode 5

Lie Detectors

Polygraphs are used in thousands of investigations and job screenings. Can a machine really detect whether someone is lying? Penn & Teller will meet people whose lives were ruined by the faulty tests.

Jul. 23, 2009