By now the world is familiar with the disastrous consequences of the ten year period (1966-1976) in China's history known as the Great Proletarian Cultural Revolution. The mistakes of Mao Zedong's later years have been officially acknowledged, and the infamous Gang of Four publicly tried and sentence for their crimes. But on the cultural front the thaw had no sooner come than gone. A campaign against what is regarded as "spiritual pollution" is being...