This is what your grandparents fought and died for.

Too bad our government was just like, we’ll pardon your war crimes and forget you’re a Nazi if you’re good at science and can help us do science things better than other countries!

Pretty much everyone has done this historically, fuck even Rome did it. Smart people are often times worth their weight in gold especially if they made life annoying for you and your army, so they basically fall into the category of war loot.

Also it’s usually a either you join us or we kill you situation.

The history of denazifying Germany shows that the Allies were torn on this.

To summerize:

Russia “Okay, let’s kill all the Germans.”
Britain “Oh, but then we’re no better than them. We must make due process for all the Nazis.”
USA “Yeah, I don’t think either of you understand the scale of this.”

And the Americans was right. A due process would have taken centuries, and nobody wanted to pay for it.

So that’s why the Nuremberg trials only reached the top of the iceberg and millions of Nazis got away with no other punishment than memories of shame.