This is the top comment on the Reddit thread: "They went after high ranking military officers . They went after members of congress . The Senate and the House - especially on the intelligence committees, and on the armed services committees and judicial. But they went after other ones too. They went after lawyers and law firms . Heaps of lawyers and law firms. They went after judges . One of the judges is now sitting…
They later grow to encompass international commerce, as that too related to national defense. Knowing where, how, and who are able to transport material in and out of countries is paramount in successful wars between nations. Of course, having access to private information in the international market, they were also able to start supporting their own nations companies and improve the nations ability to commercial out compete foreign companies.
Afterward, the next step was to encompass everyone in ubiquitous surveillance. Having a working social graph of their own citizen, as well as anyone else can very much relate to national defense, now called nation security. Knowing who might in 10 years become the next President of the United States is important, as otherwise the wrong candidate might get elected. Surveillance of news papers is also of paramount importance, as otherwise state officials won't have time to react to the fast pace of inquiries that otherwise might happen. Documents destined to be shredded could be laying around for just anyone to read.[¹]
The next step they took was a bit more bloody. Secret indefinitely incarceration, torture, and kill lists (The renamed Deathsquad of old). Using military force in targeting journalists, and publications.
I wish I know what the next stage is. The insight from the old big leaders of west Germany, USSR and China has not made any new innovations on this front. At most, they were better at scaling the last step up and increasing the size of the kill lists, torture chambers, and the nastiness of the military force against journalists. I wonder if the national security agency feel a need to go one up on this, and innovate further. The virtual strip search by massive radiation machines are a nice touch, but they surely can do more.