> This represents a problem for Democracy because the President is our civilian leader who is supposed to be in command of the military. If in fact it is the military/intelligence that is leading him, then the Presidency has failed.
Democracy is not a government of presidents. It is a government of people. I agree that you can usefully argue that "the Presidency has failed", but the existence of the Presidency was always a hack, in software terms. It was never a well-designed system; it was a convenience which has been subject to feature creep due to a long history of abuse and counter-abuse. Try to put yourself in the Founders' shoes and seriously think about the question of why the executive branch needs to be headed by a single person; it doesn't. It was just easier that way.
To fix this, the response isn't to whine about NSA overreach or Presidential doublespeak. It's to actually establish a democracy.
(P.S., it is inaccurate to characterize the POTUS as in command of the NSA. He is responsible and accountable for them, but he is not in command. The continued incapability of HNers to internalize basic facts listed on Wikipedia suggests either, how did you put it, that they are either "dumb" or choosing "not to exercise their capability" in understanding their government. I think I like your false dichotomy after all.)
POTUS can fire the head of the NSA. Truman fired Macarthur.
It's an interesting discussion the extent to which reality matches the law, but according to the US Constitution Obama is in command of the NSA.
The authority that the POTUS has over the NSA is more analogous to that of a CEO over a departmental division than that of a general over a battalion. As I said, the POTUS is responsible and accountable for the NSA, in the same way he is responsible and accountable for what our diplomats and ambassadors say to foreign governments, in the same way he is responsible and accountable if the FCC fails to secure network neutrality.
One of the more interesting consequences of this is that, if you were to place the USAF under the authority of the NSA, it would not violate the principle of civilian control of the military.
This is getting tiring.
Take a look at this list of former Directors of the NSA and count how many are ranking uniformed military officers. Spoiler: since the founding of the agency, all 17 of them.