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Of free speech 2
Of course, all governments impose limits on freedom of expression.
These limits are sometimes acceptable and generally accepted by the population: this is the case in France, for example, with hate speech, terrorist propaganda, child pornography, etc. The US has even included freedom of expression in the first amendment of its Constitution: there the limits are wider (but note that if the Nazi party is allowed, disclosing means to read DVDs is prohibited by the DMCA).
Unfortunately, most people in the world live under authoritarian regimes and suffer from restrictions on freedom of expression designed to suppress dissent and ensure the stability of the regime. The pretext is invariably the preservation of public order, and perhaps some citizens believe it.
But on the Internet geographical borders are obsolete, we can no longer restrict ourselves to thinking at the local level of a country or a continent.
These prerequisites are necessary to understand that if mass surveillance and censorship are possible on the Internet, they will be abused to oppress most of the world’s population.