How could you be a member of any standing in the elite media if you don't have access to "leaks"? If something leaks that wasn't actually approved by the agencies, what do you think is going to happen to the leaker?
My point is that any time an "anonymous government official" or "high level intelligence official" or whatever leaks something to the prestige press - meaning, the article says "according to anonymous government sources..." - AND the leaker is not jailed / prosecuted, THEN you have to assume that the leak was deliberate (approved at a high level) and in service of the intelligence agency's own ends.
But I don't see any reason to belive that it constitutes 'controlling the media'.