The "Dark Heart" of Auschwitz-Birkenau
Clip: Season 18 Episode 2 | 1m 55s | Video has closed captioning.
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: 01/21/20
