Baloney, it is just an expensive blood pressure machine. They can keep asking questions and changing the questioner until they get what they want. Would you REALLY want to put your life on the line on the basis of a polygraph? I think not.
Wrong, and once again you're showing your ignorance on polygraph procedures and even how the machine works.
Not uncommon from those who watch CSI Miami on TV, watch a few Court TV shows, follow talking heads and their opinions of crimes. All of a sudden experts on all tools used in criminology.