Ahead of the 75th anniversary Monday of the liberation of the Auschwitz-Birkenau concentration camp, Pope Francis recalled this morning at the Angelus prayer the “appalling tragedy” of the Holocaust, insisting that “indifference is admissible and remebrance is a duty”. “Never again, never again”, the pontiff cried, calling tomorrow for “a moment of prayer and of recollection” on the part of all.