“Lie detector tests have been meaningless to me ever since an article in Photography magazine almost 40 years ago.”
Lie detectors are a big scam operated by charlatans and believed by suckers (and I know it as an electronics engineer with years of experience in medical devices design).
Penn and Teller has made a Bullshit episode about it.
In order to work with a Security Clearance for the FBI, CIA, NSA, or Border Patrol you have pass a drug use and lifestyle polygraph examination.