What proof is there that terrorists are trying to secure nuclear weapons? How would they smuggle it unnoticed across the world? Why would they want to target the city you live in?

These questions must be weighted by each person for him or herself. I've chosen for some nicer car insurance. I still don't have nuclear terrorism insurance. I still sleep well at night after working in defense in this area and having friends working on these very issues.

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]

And the fact that "terrorists" have been so far completely unsuccessful should maybe make you question whether they actually are.

You are claiming this on what ground? Source please. Or stop spreading misinformation.