I guess I should add my own story - when I was in high school, this army recruiter gave a talk to our class. What follows is a paraphrase of his speech:
"How many of you support the war in Iraq?"
no one raises hand
"What about Hitler? Saddam Hussein is doing the same things Hitler did to his own people. So If you oppose the war in Iraq, you support Hitler!"
None of us quite had the nerve to speak up about it, but if you listened closely, you could hear the sound of a thousand little bullshit detectors going off.