text: School should not use this technology to the students because this technology is good but bad at the same time. Students didn't come to school happy everday. Sometime students come to school sometime they are not enought sleep so they don't want to study or they get angry easily. Some students have some teachers they didn't like so if the teachers know that their communication can't be good. Even if we don't use this technology most teachers can understand our expression by looking at our face.           Driverless Cars, good or bad?