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I n early 2023, Rocco Casagrande, a scientist and former United Nations weapons inspector, brought a small container to the White House for a briefing with American government officials. It was filled with a dozen easily available chemical ingredients that Anthropic’s flagship chatbot, Claude, recommended as precursors to trigger another pandemic. Casagrande’s stunt confirmed that anyone with an internet connection can now conceivably create their own weapon of mass destruction. “It is clear that biological technology, now boosted by artificial intelligence, has made it simpler than ever...