Talk in Iran about change in nuclear weapons policy must

Rafael Grossi, the UN’s nuclear inspectorate chief, is fearful of Iran’s threats of shift to deterrence

Loose talk within Iran about abandoning the country’s prohibition on possessing nuclear weapons is very worrying and needs to stop, Rafael Grossi, the head of the UN nuclear inspectorate, has said.

He was speaking to the Guardian after talks in London with David Cameron, the British foreign secretary, about the future of Iran’s nuclear programme and Grossi’s delicate efforts to persuade Iran to re-establish an effective inspection programme capable of guaranteeing that the country is not seeking a nuclear weapon.