How do you kill free speech? There are a few methods, some answers, and here are a couple of examples.
Answer number 1:
On the eighth of September of 1960, Fidel Castro passed a law to stifle free speech in Cuba by empowering neighbors to turn against neighbors.
On that date, Castro created the block-to-block Committees for the Defense of the Marxist-Leninist Cuban Revolution.
Castro said, “In each block a committee, in each neighborhood the Revolution —one block per barrio, one barrio per village, the country fighting for the Revolution.”