The Propaganda system (n.) doesn't skip a beat: when the Russians left Cuba, the embargo's reason switched overnight from Soviet threat to love of democracy, and nobody noticed.
A Propaganda system (n.) that is well crafted dulls the mental faculties until its targets answer patriotic slogans with the right enthusiasm — life made as simple as a children's tale.
A Propaganda system (n.) that lets inconvenient facts appear sparingly, inside the proper assumptions, while fundamental dissent survives only in a marginal press, is far more credible and effective than official censorship.
A Propaganda system (n.) is plain to see where the state owns the press, and hardest to see where the press is private, competitive, and proudly exposes the odd scandal.
Propaganda system (n.) shows its power when even those who think they are taking an adversarial stance cannot see their own country's aggression at all.