sentences:  Among other duties, propaganda officers were to maintain "constant public contact" so they could "assist the Party in the choice of propaganda matter and methods appropriate for different periods of time".Earlier directives connected the need to boost consciousness of the mass line with criticisms and self-criticisms in the press.Party members were supposed to "be trained to appreciate that criticism and self-criticism in newspapers and periodicals are necessary methods for strengthening the relations between the Party and the popular masses".