They don't have to use man hours on anything. It is all based on keywords, flagged phrases, etc the NSA doesn't decide what people to start spying on. the supercomputer record everything and if anyone is an issue an alert is triggered. How else do you police a populace in real time? The more technologically accept we are the less secure we are in our own. The FBI was wiretapping anyone they wanted under Hoover over phone lines. It has only become easier for them now. They control the entire infrastructure Not sure why you keep trying to insult me.