S18 E2: The "Dark Heart" of Auschwitz-Birkenau

In 1944, Rudolf Vrba and Alfred Wetzler escaped from Auschwitz-Birkenau concentration camp. Their harrowing testimonies and detailed sketches of the camp's mass extermination practices exposed the "dark heart" of Nazi-occupied Poland.
Aired: 1/21/2020 | 0:01:55
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