text: The use of this technology to read the emotional expressions of students in a classroom is not valuable because it won't have any affect on the students, it will cost a lot of money to build, and it will be completely useless. The idea of even having this technology in our schools won't be good for the benefit of our schools and students.         In my opinion, developing driverless cars is a scary/bad idea. It's true television and movies have been fascinated with cars that could drive themselves. They show how they can work good and they show how they can work bad.