Pope Leo XIV has urged governments to keep people in control of decisions involving human life, freedom and the use of force, and to take steps toward banning lethal autonomous weapons. Speaking on 30 October to participants in a Vatican meeting on AI, he said the technology must be “disarmed” and that “Machines are tools, not persons.”
The Holy See’s transcript says the meeting was organized jointly by the Pontifical Academy for Life and the Future of Life Institute. Leo encouraged states meeting in Geneva in November to take concrete steps toward a ban on lethal autonomous weapons. He did not announce a new agreement or policy; he was calling on governments to act.
What does “disarmed” mean?
Leo’s address focused on where human decisions should remain in control. He said decisions affecting life, freedom and force must have “effective, informed, and responsible human oversight.” He gave the examples of placing someone on a target list or entering them into a border-control database, warning that people could be reduced to data points.
He also argued against giving AI systems rights or legal personhood. In the address, he said machines do not have human experiences or relationships and warned that treating them as legal persons could obscure who is responsible when people are harmed. The point, as presented in the speech, is not that AI systems have been granted legal status, but that proposals to do so could make accountability harder.
A call for rules and accountability
The Holy See transcript lays out five principles: AI’s future depends on human choices; machines are tools; some decisions should not be delegated; AI should serve the common good; and institutions should put ethical principles into practice. Leo called for shared standards, independent oversight and ways to challenge decisions and seek remedies for harm.
Vatican News reports that Leo described the meeting’s participants as sharing unease about AI and said more action was needed. The Verge notes that the address builds on his May document, Magnifica Humanitas, and echoes Pope Francis’ 2024 call that no machine should choose whether to take a human life. Leo’s speech connects that warning to a wider demand for oversight of AI’s development and use.
Why it matters
For people affected by border screening or other high-stakes decisions, Leo’s proposal is that a responsible human—not an AI system alone—must oversee decisions affecting their freedom or safety. The address is a call for governments and institutions to set rules; it does not establish that new rules or a weapons ban have been adopted.
