Jan Karski (standing), underground courier for the Polish government-in-exile. He informed the west in the fall of 1942 about Nazi atrocities against Jews taking place in Poland. Pictured in his office in Washington, DC, United States, 1944.

Jan Karski (standing), underground courier for the Polish government-in-exile. He informed the west in the fall of 1942 about Nazi atrocities against Jews taking place in Poland. Pictured in his office in Washington, DC, United States, 1944.