And this is why an expert propagandist understands that you don't need to prove anything. You just say it (preferably with some emotionally-wrapped slogan), and

And this is why an expert propagandist understands that you don't need to prove anything. You just say it (preferably with some emotionally-wrapped slogan), and three to ten years later, people will simply recite what you've said as though it is fact. Of course, you can pad it in weasel words and boring facts. Nobody will remember those parts of the message anyway.