What recourse is there for those people who told the truth on their polygraph, did not use countermeasures, and still failed?  The satisfaction of knowing that, though they may have failed, at least they told the truth and didn't do any math problems in their head?

Can examinees who told the truth and failed sue the polygraph operator?  After all, when I failed my polygraphs I did so while answering all questions truthfully and while diligently following all of the operator's instructions.  Using the same logic as the original poster, wouldn't the polygraph operator be to blame for my polygraph failure?

With regards to the original post, I think there would have to be some way of proving that someone who used countermeasures and failed would have definitely passed if they had told the truth without using countermeasures.  If the polygraph industry cannot do that, and we all know they can't, then how can they claim a book or a website an examinee used is to blame for their polygraph failure?