Domestic Propaganda During The First World War

Is propaganda compatible with democracy, or does it undermine the population's ability to think critically about world events? What happens when simplistic, emotional appeals are endlessly repeated? During the war, Bourne complained that "simple syllogisms are substituted for analysis, things are known by their labels, [and] our heart's desire dictates what we shall see." Could this description apply equally to a political climate in which slogans like "Three Strikes, You're Out," "Don't Ask, Don't Tell," and "Just Say No" are treated as if they were actual policies for dealing with social needs?