The Truth About the Polygraph (According to the NSA)

The National Security Agency (NSA) has produced a video about its polygraph screening program. Watch it here, along with’s commentary:

The original source video is available here. For commentary on the NSA’s accompanying polygraph leaflet, see our earlier blog post, NSA Leaflet: Your Polygraph Examination.

For a thorough debunking of polygraphy, with extensive citations (including the U.S. Government’s own polygraph literature) that you may check for yourself, see’s free book, The Lie Behind the Lie Detector (1 mb PDF).

See also these public statements by individuals who have gone through the NSA polygraph process:

And for discussion of polygraph matters, see the message board.