From a comment on Doug’s Rant, a link to an excerpt from “They Thought They Were Free”, Milton Mayer’s history of Germany from 1933 to 1945. Key paragraph:
What happened here was the gradual habituation of the people, little by little, to being governed by surprise; to receiving decisions deliberated in secret; to believing that the situation was so complicated that the government had to act on information which the people could not understand, or so dangerous that, even if the people could not understand it, it could not be released because of national security. And their sense of identification with Hitler, their trust in him, made it easier to widen this gap and reassured those who would otherwise have worried about it.
Sobering stuff.