text: Conclusion, i believe that going a day without any transportation would be good, maybe not just on day, but i also feel like you shouldn't gat rid of cars all the way. People being fined for not wanting to just do it for one day should get there cars tookin away, they don't deserve to ride around and polute our air. But taking cars away all at once its'nt right and people shouldn't be fined for it.    There is so many of emotions, and only we know if we want to show them or not. Emotional expressions help us to show how we feel, or we can only pretend them, that is why I am against with the value of using this technology to read students emotional expressions. We have to think if they really want us to know what are they feeling? We all are humans, so we know that sometimes we feel embarresed of something, and we do not want to people know that. Adding to these we have to have our privacity.