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 policy-makers to equate at par with risks posed by pandemics and nuclear war. “Mitigating the risk of extinction from AI should be a global priority alongside other societal-scale risks such as pandemics and nuclear war,” more than 350 signatories wrote in a letter published by the non-profit Center for AI Safety (CAIS). As well as Altman, they included the CEOs of AI firms DeepMind and Anthropic, and executives from Microsoft and Google. Also among…