Conversation so far:
What is Hedin's connection to Nazi Germany?
Hedin met Adolf Hitler and other leading National Socialists repeatedly and was in regular correspondence with them.
What else did he do?
Hedin supported the Nazis in his journalistic activities.
What was the result of this?
he did not regret his collaboration with the Nazis because this cooperation had made it possible to rescue numerous Nazi victims from execution, or death in extermination camps.

Question: Was there any controversy?
Self-contained rewrite: Was there any controversy to Sven Hedin supporting the Nazis in his journalistic activities?