Criticism bearing our abrasive tone and uncompromising stance is sometimes derided as lowdown or (worse yet) easy. But the truth is, this kind of criticism is the hardest thing in the world to produce if you happen to live in a culture ruled by the dicta of positive thinking and dread of the existential crime of being negative [...] your compliance is ultimately expected, and the enterprise of criticism of America has to contend with a culture of consensus that reduces conflicts over values to matters of individual attitude.