Pope Francis appointee Frank Leo officially installed as new Archbishop of Toronto

Cardinal Thomas Collins delivers at online Good Friday service in an empty St. Michael's Cathedral in Toronto on Friday, April 10, 2020. Collins, who offered his resignation on his 75th birthday in January 2022, has been succeeded by bishop Frank Leo in a ceremony on Saturday, March 25. THE CANADIAN PRESS/Nathan Denette Cardinal Thomas Collins delivers at online Good Friday service in an empty St. Michael's Cathedral in Toronto on Friday, April 10, 2020. Collins, who offered his resignation on his 75th birthday in January 2022, has been succeeded by bishop Frank Leo in a ceremony on Saturday, March 25. THE CANADIAN PRESS/Nathan Denette

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Top AI CEOs, experts raise 'risk of extinction' from AI

Top artificial intelligence executives including OpenAI CEO Sam Altman on Tuesday joined experts and professors in raising the 'risk of extinction from AI,' which they urged policymakers to equate at par with risks posed by pandemics and nuclear war.