The big picture
Its funny how people are petrified about rogue NSA elements, for whatever reason hacking the average Joe's machine to install illicit material that he can be subsequently prosecuted in a bon fide court system for. Without acknowledging that Microsoft could do the same. Or Google. Or your building management agency. Or your work IT guy. Or your wife. Or your best friend. Or your frustrated teenage son.
This discussion thread is fascinating, but its irritating to read weakly founded paranoid scenarios about how the govt can get you if they chose to. Seriously, if they want you out of the way, all it takes is a sliced brake fluid line. And if it's about blackmail, it's an over simplistic scenario to assume that only the govt would consider doing it. Very few people have genuine need to be concerned about governments hacking their electronic communications. And they can find other ways to go about their business. For the rest of us, its your responsibility to make educated judgment calls - while remembering that you're more likely to be killed by a drunk driver than falsely accused by the NSA. I estimated that last fact, but I'm happy enough believing it.