VATICAN CITY (Reuters) -Pope Francis has called for a legally binding international treaty to regulate artificial intelligence, saying algorithms must not be allowed to replace human values and warning of a "technological dictatorship" threatening human existence. The pope made his call on Thursday in a message for the Roman Catholic Church's World Day of Peace, which is celebrated on Jan. 1. The title of the message, which is traditionally sent to world leaders and heads of institutions such as the United Nations, is "Artificial Intelligence and Peace".