I don't say you're self-censoring - I'm sure you believe everything you're saying; but what I'm saying is, if you believed something different, you w… - Noam Chomsky

The phonological component of a grammar determines the phonetic form of a sentence generated by the syntactic rules. That is, it relates a structure generated by the syntactic component to a phonetically represented signal. The semantic component determines the semantic interpretation of a sentence. That is, it relates a structure generated by the syntactic component to a certain semantic representation.

My own concern is primarily the terror and violence carried out by my own state, for two reasons. For one thing, because it happens to be the larger component of international violence. But also for a much more important reason than that; namely, I can do something about it. So even if the U.S. was responsible for 2 percent of the violence in the world instead of the majority of it, it would be that 2 percent I would be primarily responsible for. And that is a simple ethical judgment. That is, the ethical value of one's actions depends on their anticipated and predictable consequences. It is very easy to denounce the atrocities of someone else. That has about as much ethical value as denouncing atrocities that took place in the 18th century.

The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum - even encourage the more critical and dissident views. That gives people the sense that there's free thinking going on, while all the time the presuppositions of the system are being reinforced by the limits put on the range of the debate.