On the eve of International Holocaust Remembrance Day, German President Frank-Walter Steinmeier has called for the memory of Nazi crimes to be kept alive. “We remember the millions of people who were deported to concentration camps, tortured and murdered there,” he said on Wednesday during a visit to the former Sachsenhausen concentration camp near Berlin. “They were imprisoned here because they were political opponents of the regime, because they were Jews, because they were counted among the Sinti and Roma, because they were homosexuals or because they were prisoners of war.” Sachsenhausen h…