text: In conclusion the face of Mars is a natural site, and not made by aliens. I know because of the picture of the face of Mars. The new technology we used to get a better look at it. Lastly how other natural sites look like the face of Mars.  Using a computer to identify human emotions sounds good and bad. It sounds like it can be good in a way like if a friend was having a bad day and we didn't know what was wrong with them, we could then use a computer to help us. It can also be bad because what if a person doesn't feel like talking about a certain subject, using a computer to detect that humans emotion is unfair to that person, invading their private thoughts.