The corruptors didn't want the people to know the secrets of the Nazi Regime. You know that many Americans were Nazi supporters and that many of those Americans are in power today. This is just one reason. Not to mention Hess, would have many other things to say about the world that people would be suprised to hear. Talk to dragonrider about this. He has much interest in this subject.
Also if you want to try and find anything about Hitler look up the American Satanist pig, named Doctor Ewen Cameron. He was the last person to examine
Hess before he was locked away for years and years. They say the two talked for 6 hours, yet only a liar could tell you what they talked about.
Hopefully this will help your search.