Surveillance is more and more popular these days, and this is not good news for those who value their privacy. Once surveillance becomes more affordable, there might be surveillance almost anywhere. In such scenario people would have no privacy, and someone who had access to surveillance videos could possibly know your every move.
Fortunately, there are some steps being taken in order to make surveillance more appealing to the public. There is software that claims that it can scramble the face of the person, so that it will only be visible for those in charge of the software when they will spot some suspicious behavior. When they notice something suspicious, they will have the option to remove blurring. This way they will not be able to recognize other people passing by. However, we would have to trust that their supervisors would not allow them to remove the blurring without a good reason. It sounds good, but it implies that you can trust all security guards and their judgment.
I know that many people will still not be completely satisfied with this software, but we have to admit that it is a step in the right direction. If surveillance is something we cannot avoid, we should at least make sure that it does not violate our privacy too much.