Lie Detectors
Penn & Teller: Bull! · Season 7 · Episode 5
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 Details
Air date, runtime, timezone, and episode position.
Season
7
Episode
5
Air Date
23/Jul/2009
Air Time
22:30
Runtime
30 min
Overview
Episode summary.
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 Navigation
Move between previous and next episodes.