Some of the AI industry's biggest rivals have put their many, many grievances aside for a common cause: making it harder for people to use their technology to develop biological weapons. In an open letter to US lawmakers, tech leaders are pressing Congress to enact rules closing what they say is an alarming biosecurity gap that could help trigger a global pandemic. Anthropic's Dario Amodei, OpenAI's Sam Altman, and Microsoft's Mustafa Suleyman are among the signatories urging US lawmakers to req