Bill opens door for killer AI weapons— Pentagon can override ban and deploy autonomous lethal systems

A newly introduced U.S. Senate bill would allow the military to deploy autonomous lethal artificial intelligence systems by granting the Secretary of Defense the authority to override its own restrictions.

Senate Bill S.4113—the “AI Guardrails Act of 2026,” introduced March 17, 2026 by U.S. Senator Elissa Slotkin (D-MI)—is being presented as a framework to limit how the Department of Defense uses AI.

But the actual text includes a built-in waiver mechanism that enables those same systems to be approved and used under national security justifications.

This means a Pentagon-approved AI system could independently identify and engage targets, making life-and-death decisions without real-time human input.

There is no language in that waiver clause limiting where the system can be used, whether targets are foreign or domestic.

The bill has been read twice in the Senate and referred to the Senate Armed Services Committee, where it now awaits further consideration.

The waiver raises questions about how often “extraordinary circumstances” will be invoked, who ultimately decides when autonomous lethal force is justified, and what meaningful limits—if any—remain once that authority is exercised.