Pope Francis on Wednesday marked the 76th anniversary of the liberation of the Auschwitz death camp by urging people to keep a close watch on ideological extremism, because "these things can happen again".
He spoke three weeks after displays of anti-Semitism surfaced at the U.S. Capitol riot on Jan. 6 and two weeks after one of Montreal's largest synagogues was vandalised and almost set on fire.
"To remember is an expression of humanity. To remember is a sign of civility. To remember is a condition for a better future of peace and fraternity," said Francis, who visited Auschwitz in 2016.