Dissonance

"No one understood better than Stalin that the true object of propaganda is neither to convince nor even to persuade, but to produce a uniform pattern of public utterance in which the first trace of unorthodox thought immediately reveals itself as a jarring dissonance."
--Alan Bullock
[Alan Louis Charles Bullock, Baron Bullock] (1914-2004) British historian
Source: in Hitler and Stalin: Parallel Lives (1991)