During WW2 a lot of US propaganda was based around things like showing full store shelves stocked with cheap goods. The best sort of propaganda is the truth, be

During WW2 a lot of US propaganda was based around things like showing full store shelves stocked with cheap goods. The best sort of propaganda is the truth, because ultimately there's no argument against it beyond attacking the person who said it 'Blah! That's just filthy imperial capitalist propaganda!' But the briefest glance at history (or the past few years) will emphasize that the 'good guys' don't always tell the truth and the 'bad guys' don't always lie. Such is the nature of war that in reality the person most likely to be telling the truth is the person winning, and the person most likely to be lying is the one that's losing. It's in large part for this reason that wars often end only years after they've been really decided, which ultimately achieves little beyond hurting the losing side even more.