Holocaust Denial is a very risky subject for obvious reasons
There is a good description at
Wiki that will fill you in.
In doing my research on this, I found that there are two factions involved with this phenomenon. The Jewish Conspiracy group who are at odds with Jewish ideals and their peoples, and History Revisionist who just want to know the truth, and feel that they have not gotten it from the current model.
Many eyebrows have been raised because of the laws in many countries that punish holocaust denial with imprisonment, and Israel has stated it wants extradition privileges worldwide on this. Unfortunately I think this brought more attention to the subject more than any researcher who thinks truth fears no investigation.
I personally dont know what to think of it all. All I know is countless people suffered at the hands of war and science. I can see the desecration of opening it all back up to question it.
that and it is a big fat can of worms probably left unopened
HAH!
Edit: Just wanted to add that just as Bill & Kerry have used their pull to help Gary McKinnon, so did Rense in trying to help a man Ernest Zundle (sp) with his trial and extradition to Germany over the crime of Holocaust Denial. This is probably where Rense got associated with HD in the first place, but that was a while back and I am not 100% on this.