This right here though is kind of hard to ignore, since we know the CIA has never told the truth to the American people about anything unless congress speciifcally drags it out of them or there is a leak....so....I think its safe to assume that none of these incidents were them, and in fact, they can't rule any out....and even the fact that they are commenting on this strongly implies a coverup.
You realize, of course, that for anyone following your logic, the CIA can get them to believe whatever the CIA wants them to believe, simply by stating the opposite.
If you really don't trust the CIA to tell the truth (and I don't blame you for that), the rational response is to ignore anything the CIA says, since there is no way to tell whether it's true or not. Always believing the opposite of what they say is just as bad as always believing what they say.