Title | : | You've Got John Grogan on How to Cheat a Polygraph Test |
Duration | : | 1 minute, 53 seconds |
Uploader | : | AOL YouTube |
Added On: | : | 28 September, 2012 |
Views | : | 53.7K times |
Likes | : | 0 |
Source | : | YouTube |
Famous polygraphist John Grogan talks about testing celebrities and how lie detectors can be cheated