Auschwitz-Birkenau was designed to kill. Four gas chambers murdered thousands at a time, belching out smoke and human ashes. Starvation, thirst, disease, and hard labor reduced the average lifespan to less than three months. More than 1-million people perished in the largest German Nazi concentration and extermination camp. Seventy years after her liberation, Kitty Hart-Moxon makes a final return to Auschwitz-Birkenau to walk among the crumbling memorial with students Natalia... see more