Media What Liberal Media?

Social scientists talk about useful myths, stories we all know aren't necessarily true, but that we choose to believe anyway because they seem to offer confirmation of what we already know (which raises the question, If we already know it, why the story?). Think of the wholly fictitious but illustrative story about little George Washington and his inability to lie about that cherry tree. For conservatives, and even many journalists, the "liberal media" is just that--a myth, to be sure, but a useful one.
· Myths [The Nation]