Pope Leo XIV has told states to 'disarm' artificial intelligence, and he did it two weeks before the room where that argument is actually held opens: the review conference of the UN convention that has spent a decade arguing about autonomous weapons.
Speaking on Friday 30 October to participants in a Vatican meeting organised by the Pontifical Academy for Life and the Future of Life Institute — titled 'The future of AI: a dialogue between the Vatican and the scientific world' — the Pope set out five considerations. The second was the sharpest. 'Machines are tools, not persons,' he said, warning that proposals to grant such systems rights or legal personhood 'risk obscuring human responsibility and leaving those who suffer harm to confront a faceless entity.'
The third tied data processing to violence. 'When a person is placed on a target list or entered into a border control database, there is a danger that he or she will be reduced to a mere data point.' Decisions affecting human life, freedom and the use of force, he said, must always remain subject to effective, informed and responsible human oversight. 'For this reason, artificial intelligence must be disarmed, and I encourage the States that will meet in Geneva in November to take concrete steps toward banning lethal autonomous weapons.'
He anchored the argument to Pope Francis, who told G7 leaders in June 2024 that no machine should ever be entrusted with the decision to take a human life. The other points covered agency — 'the future of artificial intelligence is not pre-determined', and people may 'guide, change and, when necessary, reject its applications' — the common good, and, described as most urgent, institutions: effective international bodies, shared standards, independent oversight and clear accountability.
The Vatican text does not name the Geneva meeting. The obvious candidate is the Seventh Review Conference of the Convention on Certain Conventional Weapons, which runs from 16 to 20 November at the Palais des Nations and whose documents include a proposal on the mandate of the expert group on lethal autonomous weapons. It follows a non-binding text agreed in September that campaigners said was watered down in its final hours, and an August appeal by the UN Secretary-General and the International Committee of the Red Cross.
Why it matters: the Pope holds no vote in Geneva's rules of procedure. What he supplies is language — a moral frame for states leaning toward a ban, and an awkward question for those who prefer 'norms of use' and positive obligations: who is accountable when nobody decides?
