You use that word, acquire. You mean steal. The idea that a terrorist organization is going to manufacture nuclear weapons is ridiculous.
But the solution to "someone might steal a nuclear weapon" is not "spy on everybody in the world" -- the solution is to secure the nuclear weapons. Which is a thing governments do that nobody is objecting to and that has nothing to do with mass surveillance.
Sorry, didn't mean to suggest tacit approval for carte blanche government surveillance. I'm just implying that just because terrorism has a low death toll now, doesn't mean that it will [since terrorists are seeking to exact as much damage as possible]
But the solution to "someone might steal a nuclear weapon" is not "spy on everybody in the world" -- the solution is to secure the nuclear weapons. Which is a thing governments do that nobody is objecting to and that has nothing to do with mass surveillance.