I heard this on the radio a short while ago:

At the airport in Knoxville, Tennessee, the TSA is testing an Israeli made
machine on passengers (at random). The passenger is taken to a nearby room, asked to sit in a chair, and then the passenger places either their hand or their entire arm into the machine. The passenger is then asked questions which they, the passenger, are supposed to answer on a touch screen. As the passenger gives his or her answer on the touch screen, the machine measures the passengers' blood pressure, heart rate, and whether or not they sweat! The purpose is supposedly to check for deception and catch an alleged terrorist. Has anyone on this board experienced this intrusive contraption? If asked to participate in this "random" test at Knoxville, can a passenger tell the TSA to go pound sand, and will they, the passenger, be told, "Do You Want to Fly Today?"