I think that texting while driving should be banned, because it is a very dangerous act. When you text, your eyes are on the screen of your phone, instead of where they should be, on the road. When you are not paying attention to the road, you can get into a crash, which could be fatal to you or the other driver.
Also, if you end up killing a passenger in the other car, you could be charged with vehicular homicide, which is a very serious crime. That is why I think texting while driving should be banned.