Guterres warns humanity on ‘knife’s edge’ as AI raises nuclear war threat

UN secretary general makes plea for nuclear states to agree on mutual pledge not to be first to use nuclear weapons

The UN secretary general, Antonio Guterres, has warned that the spread of artificial intelligence technology multiplies the threat of nuclear war, and that humanity is now on a knife's edge" as dangers to its existence coalesce.

Guterres's warning is due to be shown on a recorded video to be played on Friday morning at the annual meeting of the US Arms Control Association (ACA) in Washington.