Because such tactics were already successfully used in the past -- WW2 Germany, and post-WW2 Soviet Union. And they were quite effective, too. Seeing as the wor

Because such tactics were already successfully used in the past -- WW2 Germany, and post-WW2 Soviet Union. And they were quite effective, too. Seeing as the world is moving into another dystopian era, the same mechanisms can be employed again, this time enhanced by the electronic surveilance too. Even just a single fraction of it -- a mandatory (at least where I live) cellphone, with permanent location tracking by the service providers is scary enough right now.