5-th episode of 7-th season "Penn & Teller: Bullshit"

What "Penn & Teller: Bullshit" 5-th episode about

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.

Episode number: 5

Episode name: "Lie Detectors"

Episode release date: 24 july 2009 at 02:00

Status: aired

Rating: 7.9