Came here to post this link. Essentially, we already live in a state where the government knows everything about us. Who we talk to, what we purchase, where we go online and physically in the real world, what we talk about, etc. Every vector of our lives has this data collected and stored ever day by private companies (and to a lesser extent, the government itself). When the government wishes, it simply tells those companies to hand over the data about you and they do, most times without a warrant. The government collects all of this private information about you already via private companies, and simply creates laws that let them dip into it as they wish, and every year more laws that do so. We don't have privacy in this country, unless you're referring to the privacy a gazelle in the center of a pack has.