Survivors of Auschwitz-Birkenau are gathering Friday to commemorate the 78th anniversary of the liberation of the Nazi German death camp in the final months of World War II, amid the horror of war again shattering peace in Europe. The former concentration and extermination camp is located in the town of O?wi?cim in southern Poland, which during World War II was under the occupation of German forces and became a place of systematic murder of Jews, Poles, Soviet prisoners of war, Roma and others targeted for elimination by Adolf Hitler and his henchmen. In all, some 1.1 million people were killed...