Given the advance of Big Data (outside and inside of the government), it sounds to me like a variation of the argument that there's a reason people lock their c

Given the advance of Big Data (outside and inside of the government), it sounds to me like a variation of the argument that there's a reason people lock their car doors if they have valuables. Yes, people shouldn't steal from you, but if you really wanted those valuables then a wee amount of due diligence towards risk reduction wouldn't kill you either. In a perfect world we wouldn't need locks at all, either on our cars or our houses. But when the world is not perfect then sometimes it becomes more reasonable to abate the risk ourselves than to shout at the whole world to stop being imperfect.