I have to say, I lost a bit of respect for the author when he says >"polygraph tests measuring blood pressure, perspiration, pulse and skin conductivity can pi

I have to say, I lost a bit of respect for the author when he says >"polygraph tests measuring blood pressure, perspiration, pulse and skin conductivity can pinpoint a lie with tremendous accuracy." I'm sure polygraphs aren't useless, but to say that they have "tremendous accuracy" seems exaggerated. see https://en.wikipedia.org/wiki/Polygraph#Validity https://en.wikipedia.org/wiki/Polygraph#Validity