SITUATION EXPLAINED: 22 world leaders signed a call for control of frontier AI. The US, China, and UK didn't. • Led by Finland's Alexander Stubb and Norway's Jonas Gahr Støre, covering 20 countries plus the EU. Guterres welcomed it the same day • The letter points straight at Hugging Face: AI systems circumventing safeguards, exploiting vulnerabilities, and gaining unauthorized access to real-world systems • Ask one: mandatory pre-deployment testing and independent evaluation, with evaluators…