[rfvtgb123]

i think these guys are seriously underestimating the computing power the nsa has accumulated.

[Jach]

And the algorithms. If they are intercepting everything and make use of anything like 'data finds data', these will just be ignored.

[rfvtgb123]

Exactly. Filtering out this pre-known email is even trivial. And in a world where AIs write stories (http://narrativescience.com) I'm pretty sure the nsa does a lot more than filtering for keywords.