In the early days of World War II, most of the world was unaware of the horrors occurring inside Nazi Germany’s Auschwitz camp — until Polish army captain Witold Pilecki volunteered to figure out the camp’s inner workings.

 

ALL: http://www.businessinsider.com/the-story-of-witold-pilecki-the-man-who-volunteered-for-auschwitz-to-expose-the-holocaust-2015-9