Lawmakers reach for AI legislation after researchers warn of extinction

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A researcher at Anthropic resigned in protest, publicly declaring that AI labs are 'gambling with our lives' by pushing forward with increasingly capable systems without adequate safety guarantees. The departure drew public agreement from at least two colleagues, suggesting broader internal concern about the pace and safety culture at frontier AI labs. The resignation is especially significant because Anthropic has long positioned itself as the safety-focused lab in the frontier AI race. An internal researcher breaking publicly over existential risk concerns signals that even self-described safety labs may face credibility challenges from their own teams — and that internal dissent over AI risk is reaching a tipping point. On the legislative front, Senator Bernie Sanders announced plans to introduce a bill that would ban superintelligent AI development. While specific bill details were not available in the source, the move represents the most aggressive federal AI safety legislation proposed in the US — going far beyond existing governance proposals that focus on transparency, liability, or sector-specific restrictions. Note: this summary is based on the article headline and subheadline only. The full article text was not captured in the database. Key details — the researcher's name, Anthropic's response, bill scope and timeline — should be verified against the original Fast Company article.