From the article "The suit was filed under a U.S. statute that allows foreign nationals to sue in U.S. courts for damages caused by actions that violate international law." So, if you are a government official, according to the judge you are immune from this law. Would that not also mean a Nazi would be immune from this law? I stated this point in a different way, but I am still correct.
U.S. Democratic Senator Merkley airs support for Iran nuclear deal (Reuters)
from the article: U.S. District Court in Manhattan clears Dichter in war crimes suit