I would not worry too much about it. It is too late to worry. However there are some things to take note of. Any tool, technology, weapon, etc, is completely amoral, and undiscriminating. It cares not who is using it, or what for. Neither in most cases will those in charge of using them. When we, the American taxpayer, authorize the development and deployment of any resource- technological, biological, or human, to be used against anyone else, you must also assume that it is available for use against yourself. That is one thing I have never quite understood regarding all of the Law & Order types that one runs into on the right. When "someone" tries to take over the country, just who did you think they are going to use? They are already in place. You put them there. Furthermore, data mining already has a profile of you right down to how often you use the toilet and what magazine you read while doing it. It is kind of like being in the Matrix- just enjoy that steak- the fact that it may be unreal is relevant, if you cannot tell the difference, there is none.