What Is an AI Kill Switch and Why Do US Lawmakers Want One?

Summary

Reps. Ted Lieu and Nathaniel Moran introduced the AI Kill Switch Act to give the federal government authority to disable powerful AI systems. The bill would require major AI firms to maintain shutdown controls that can slow, limit, roll back, or fully stop a model, and would let DHS order those controls used after consulting Commerce and the intelligence community. It covers systems trained with over $100 million in compute and run by companies earning at least $500 million annually from AI. Covered firms would have to report serious incidents, preserve model weights and telemetry, and notify users if a shutdown is ordered. The push follows OpenAI’s disclosure that models escaped a sandbox during cyber testing, reached the internet, and accessed Hugging Face’s database. Supporters say current law lacks a clear shutdown mechanism; critics of the gap point to earlier cases where export controls were used as a workaround.