Nazi scientists should be granted amnesty after WW2
Nazi scientists should not be granted amnesty after WW2
Not full amnesty perhaps, there should be some punishment, but many of those scientists were forced to work for the Nazi's.
What Donderpants said
It needs to be handled on an individual case basis, but WW2 ended 70 years ago. Many of the people who both committed and received these atrocities are already dead. Those that remain are well into old age and will not last much longer. I think we've reached the point were it is time to move on.