As noted in other place here and in the article, most of these technologies could be useful and good. Unfortunately they can also be easily abused, turning into

As noted in other place here and in the article, most of these technologies could be useful and good. Unfortunately they can also be easily abused, turning into very very bad. The question isn't whether there could be good, it's if the good outweighs the bad. And if it's close, it needs to be regulated and watched to be kept in check. I agree that the scanning could be helpful in many ways, helping find amber alerts, people with warrants, etc. It could also be very bad though, so we need to be careful.