Well, OK, I'd rather be paranoid than correct on this particular issue. My understanding of the data collection is that it forms aggregate profiles from lots of sources - your university records, your money cards (alcoholics might get a ping, for example, or people heavily in debt), your search history, that sort of thing. And if you hit a certain level of nonconformity, you'll go on a list somewhere as a potential unfriendly. For me, you know, college communist with ties to Nicaragua, I'd be profiled as "someone likely to attend an #Occupy protest with an iPhone." Throw in a bunch of bomb-building sites and a couple of ISIS recruitment centers, however, and suddenly I'm "someone to keep an eye on."
That just seems like a bad idea. But yeah, if I'm just being paranoid….
"4 cylinder Camaro=communism" El Presidente
"You can smoke salmon but it's not quite the same as smoking heroin." nanuq