AFP March 18, 2026 / 21:42 IST . US government labels Anthropic as a supply chain riskPentagon cites AI vulnerability and refusal for military useMicrosoft backs Anthropic, cautions against damaging US AI ecosystemDid our AI summary help? Artificial intelligence company Anthropic posed an "unacceptable risk" to military supply chains, the US government insisted Tuesday, as it defends against the tech firm's challenge to a designation as dangerous.Anthropic's Claude AI model has been in the spotlight in recent weeks both for its alleged use in identifying targets for US bombing in Iran and the company's refusal that its systems be used…