In his Introduction to the 1946 edition of Brave New World, Aldous Huxley noted that the greatest triumphs of propaganda have been accomplished, not by dong something, but by refraining from doing. Great is truth, but still greater, from a practical point of view, is silence about truth. By simply not mentioning certain subjects, by lowering what Mr. Churchill calls an 'iron curtain' between the masses and such facts or arguments as the political bosses regard as undesirable, totalitarian propagandists influence thought more effectively than by lying.

Churchill was speaking of the Iron Curtain being lowered over the Soviet Empire by Stalin. Today the Iron Curtin is being lowered over the "free" Western peoples by their "democratic" governments, their "democratic" media, and their "democratic" universities and school systems.  If you are not permitted to know the truth, you cannot speak it.

Elon Musk spent a large part of his fortune to free Twitter from censorship only to find that the EU will ban Twitter from EU member states unless Musk accepts EU censorship of truths unwelcome to the EU's agendas.

The EU's French censor, euphemistically titled "French Digital Transition and Telecommunications Ministry,"  stated that "disinformation," the ministry's main function, "is one of the gravest threats weighing on our democracies."  If Musk doesn't accept the EU's censorship, Twitter "will be banned from the EU." https://www.rt.com/news/577112-eu-threatens-twitter-ban/