Should Bishop Williamson Be Brought Back Into The Fold

Should the Pope have allowed Bishop Williamson to be to be unexcommunicated even though he has denied the Holocaust ever happened?
I don't know how any one in their right mind can say this never happened.Did the people who did not die in these prisons go out of their way to lie about it?Can the tattoos they were forced to bear,to this day,be a fantasy? Pictures were taken,records were kept by the Nazis and even some survives who are still alive tell the tale of horror they were forced to endure as children.
Someone once said "A country that denies its history has no future".Every country has done things they are not proud of,we had slavery and pushed the Indians off their land but at least we admit it and have tried to live with our mistakes.
I feel Pope Benedict for whatever reason feels this Bishop is worth the forgiveness or he would not have brought him back into the fold.Now that he is forgiven this Bishop needs to make right the things he said and truly mean it or there is no point in allowing him back into the Catholic church.
I feel bad for the Jews it seem like they are always getting slammed by one group or another and to deny the Holocaust ever happened is a slap in their faces.
Today on the history channel I watched a show about the trial of Eichmann and how he denied and try to blame everyone but himself for what he did,he even tried to say it was a way to help the Jews move to Jerusalem and establish Israel,I guess the Jews just didn't know they needed to move good thing Eichmann help them or they would have remained ignorantly happy in the old country.
I guess you can spin things any way you want to convince your self your not a murderer.But even Eichmann paid for what he did with his life.The spin didn't work for him and the people he treated so badly in the concentration camps got a small amount of satisafaction. At least he was allowed a trial which is more then he gave the people he helped kill.