I haven't been to this site in years. Since first coming here I have been hired by a mid-sized agency. Anyway, I still support the cause and wanted to share this with all of you. Here is a very interesting article about the unreliability of the polygraph.
http://www.policeone.com/police-products/apparel/undercover/articles/1749986-Federal-agents-had-to-pass-polygraph-tests-to-infiltrate-Mongols-gang/
Enjoy!
Welcome back and thanks for the update and link! Indeed, the story of the ATF training its agents to fool the polygraph has been the subject of considerable discussion. Commentary should be directed here:
https://antipolygraph.org/forum/index.php?topic=4118.msg31424#msg31424