Unfortunately, yes. I'm a commander in the Israeli Defense Forces, and I've made 10's of arrests of terrorists. Most of them were attempting to hit populated centers with no military connection. If we didn't have the intel on them, we never would have been able to stop them. There is a big difference between that type of domestic surveillance and what the NSA carries out on the citizens of its own country - namely that things aren't blowing up in the USA every single day.