text: To sum up, my fellow citizens we should limit our car usage. We all can enter this stree free zone together as one, we can help the place we all call our home. Don't be against it and just use it to your advantage. Going car free is the right way to go.    Yes, the use of this technology to read the emotional expressions of students in a classroom is valuable, because many student will come into the classroom with sad face and nobody will know what is wrong with them but with the Facial Action Coding System, everybody will know what is wrong with a person if he/she is sad in class, And is not everybody that feel happy everyday but with this kind of technology we will be able to know what is wrong with them and we will make sure they feel happy.