I agree with you on that, Medicineman. Auschwitz-Birkenau KL area is good as a danger zone around which runs can be organized: hunt the loose spirits, help maintaining the barrier, find weak spots, protect the barrier from external threats(possessed mages, BBG's, Shedim, and such) and so on. But not as a place where you run. It's just too much. Besides that's a controversial idea at best, there are two basic outcomes:
A) The whole idea behind Auschwitz-Birkenau KL will be trivialized and turned into a pointless killzone. And that's bad. Really bad. Just imagine someone doing that to any of the sites on which Native American people were murdered/herded into a reserve, where they died of sickness, starvation, and such. As a reminder - i'm living in Poland, i was born and raised here, and was reminded of the nazi's and communist russians atrocities on every step of my life. I visited Auschitz once. It's something you can't forget. Ever.
B) The game will be realistic enough to show how it was/is/will be in the Auschwitz zone. I've been there, done that, and i will tell you - that is a terribly bad idea. Emotional scars aside, it feels plain wrong afterwards. I know people who were playing rpg's on graves. That's as much wrong. I don't really know how to express myself now, as i even can't do that in polish. But it would not be a good game that people enjoyed, that i know for sure.
I know there is still the possibility to have a shadowrun game taking place in the Auschwitz zone that will take the middle road successfully, and wont trivialize the place, nor emotionally hurt anyone. But i doubt that.
So if you can, run outside. There can be enough War! just beyond the barrier.
P.S. I know i went all weepy here. But i can't really stay cool when it comes to that place.
UV: 9/11 isn't that close to what happened in Auschwitz. But yes, the emotional load US has because of it is a good way to get the picture.