I take criticism so seriously as to believe that, even in the midst of a battle in which one is unmistakably on one side against another, there should be criticism, because there must be critical consciousness if there are to be issues, problems, values, even lives to be fought for.. Criticism must think of itself as life-enhancing and constitutively opposed to every form of tyranny, domination, and abuse; its social goals are noncoercive knowledge produced in the interests of human freedom.
All knowledge that is about human society, and not about the natural world, is historical knowledge, and therefore rests upon judgment and interpretation. This is not to say that facts or data are nonexistent, but that facts get their importance from what is made of them in interpretation for interpretations depend very much on who the interpreter is, who he or she is addressing, what his or her purpose is, at what historical moment the interpretation takes place.
Despite the variety and the differences, and however much we proclaim the contrary, what the media produce is neither spontaneous nor completely free: news does not just happen, pictures and ideas do not merely spring from reality into our eyes and minds, truth is not directly available, we do not have unrestrained variety at our disposal. For like all modes of communication, television, radio, and newspapers observe certain rules and conventions to get things across intelligibly, and it is these, often more than the reality being conveyed, that shape the material delivered by the media.