The distrust comes from the fact that the CIA has played a role in many operations abroad that weren't for the good of the world, not for the world peace, but purely and solely because the US thought it was necessary, either for win of money or win of political power. I do not distrust Americans, I distrust the American political system.

If the CIA had told the world that they didn't have any evidence at the moment, what do you think the reactions would be? The best reaction for them would be that they were called incompetent, it could be much worse. So it would surprise me had they said so. So if they say they do have evidence, I just think: they would, wouldn't they, regardless if it is true or not.