text: I understand that the system could increase test scores and grade averages, but the one thing that means the most is your security. Teachers' lives would be much easier due to the fact that they know which students need help and which students are soaking up the lesson well. There is just one problem. People (especially the youth) are insocure. Privacy is very important in this world and I believe the Facial Action Coding System would snatch that away from us.