In America, we collect more digital communications from America than we do from the Russians.
Edward SnowdenTo do that they, the NSA specifically, targets the communications of everyone. It ingests them by default. It collects them in its system and it filters them and it analyses them and it measures them and it stores them for periods of time simply because that's the easiest, most efficient, and most valuable way to achieve these ends. So while they may be intending to target someone associated with a foreign government or someone they suspect of terrorism, they're collecting you're communications to do so.
Edward SnowdenDo you check it when you travel, do you check it when you're just at home? They'd be able to tell something called your 'pattern of life.' When are you doing these kind of activities? When do you wake up? When do you go to sleep? What other phones are around you when you wake up and go to sleep? Are you with someone who's not your wife?
Edward Snowden