Your privacy is as strong as your weakest Link. NSA only need one a few vulnerability to be able to monitor what you do, it may be on chip maker, network provider, operating system, compiler, etc..
That's a lost battle, if they want to see what you do, they do and there is nothing one can do but force them legally not to do so.
This 'but X will get you anyway if they want' or '5$ wrench' is used by alot of people I know to rationalize selling themself out privacy wize.