Well, no. The point is it's not too difficult to make one-to-one communication invisible, to the point where if you're a spook you have to try to decrypt all traffic and web content on the Internet, without knowing if it's been encrypted, or how.

Not even nation states have that kind of budget. Nowhere close.

Public email and cloud storage are very low hanging fruit in security terms. So far the NSA has been relying on hope and wishful thinking to get its sigint.

But my point is that once you start sending messages through non-standard channels, it doesn't take much effort to become invisible.

And once that happens, your only hope as a spook is to scan and decrypt the entire Internet - because nothing else will do the job.