Considering that polygraphs give false positives quite frequently, and polygraph tests are inadmissible as evidence in the US, I can't see how teaching someone

Considering that polygraphs give false positives quite frequently, and polygraph tests are inadmissible as evidence in the US, I can't see how teaching someone to manipulate one should be illegal... Of course, the guy didn't just teach people how to manipulate them, he taught people who intended to defraud the state (in a manner of soaking). If he had just not cared about their intent, he wouldn't have a problem.