Chances are the NSA already employs such a system based on "increased danger", where danger would be defined as absolutely anything that would "change" the stat

Chances are the NSA already employs such a system based on "increased danger", where danger would be defined as absolutely anything that would "change" the status quo. That's why they spy on activists (civil liberties, climate change, animal abuse, it doesn't matter), journalists, libertarians, OWS, BLM, Linux users, etc.