In the early 1940s, Jan Karski was a courier for the Polish underground who snuck into the Warsaw Ghetto and then tried to warn Allied leaders about the Nazi extermination of Europe's Jews. At approximately the same time, Hannah Arendt -- a brilliant philosophy student and refugee from Germany -- was fleeing an internment camp in France, and finally arrived in New York.
After escaping Soviet imprisonment and being savagely tortured by the Gestapo, Karski risked his life to sneak past German guards into the ghetto to see how the Nazis were abusing Jews. Karski then disguised himself as a Ukrainian guard to visit a transfer station that sorted Jews on their way to the death camps.
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