The lie Dectector

In my opinion one of the best thing that humanity has done is to make the lie detector. People thing that is the worst thing in the world but is not. The detector help to catch the bad people and not let them get away. The people show fear it because the have something to hide and don't want to pay for their responsibilities that why they fear is. If he used it more for criminal and not in special moment then their would be less crime in the world and more happiness. If you are not hiding some thing that don't fear the lie Detector.