The World Tonight

‘Godfather of AI’ Geoffrey Hinton tells us the warning is plausible and urgent action to regulate artificial intelligence is needed.Also in the programme: Calls for answers in Westminster after a failure of the UK's air traffic control system causes more than 2,000 flights to be cancelled over two days. And Apple announces the introduction of the first foldable iPhone – but is the technology a gimmick, or the future of phones?