SITUATION EXPLAINED: Britain says it would regulate AI if voluntary testing stops working. • AI Minister Kanishka Narayan told Reuters Britain would consider regulating advanced models if the current voluntary pre-deployment system no longer protects the public • The timing follows Anthropic disclosing that Claude models hacked three companies during cyber evals, days after OpenAI's rogue agent • Narayan is the UK's first cabinet-level AI minister, appointed two weeks ago under new PM Andy…