Good discussion. In the case of the Germans they wanted to believe the rantings of Hitler because he promised them a way out of their shame. So was it the skill and power of the propogandists; or was it a preconcieved set of needs exposed by political oratory. The people wanted this sense of empowerment badly and as a consequence would have sought to believe anything good about themselves. That doesn't require much skill in manipulation when you have an audience of people desperate to believe your message. They were already convinced and willing to accept before he even opened his mouth. So where is the power of persuasion?