Most of you will allready be aware of this, but for those who aren't, some reading on a famous psychology experiment about just how mindless and sheeplike people really are in the face of authority:
http://en.wikipedia.org/wiki/Milgram_experiment
It's worth reading and then bringing up in your high school history class when talking about WW2. You can say "If Hitler was in the US we'd have killed Jews too." and then use it to support your argument and annoy your teachers.