I don't know what the Guardian is coming to.
Since theirs is a non-nuclear state under the world's only existing threat of a nuclear strike by any country against any other, and since two of their neighbours are occupied by those who have inexplicably declared ourselves their enemies, these demonstrators in Iran undoubtedly want a nuclear bomb as much as any other Iranian would. But they don't have one.
And even if they did, then it would be less of a threat to us than is the existing Muslim bomb in Pakistan. "Al-Qaeda", an idea rather than an organisation, has no training camps in Iran, which is in fact under greater threat from "al-Qaeda" than we are. As was Saddam Hussein, whom our actions have replaced with "al-Qaeda" in the Sunni Arab areas of Iraq, previously no more a threat to us than Iran is, i.e., not at all.
Do you lie awake at night, worrying about the nuclear threat from Pakistan? You would have even less reason - indeed, you would have none whatever - to lie awake at night, worrying about the nuclear threat from Iran, even if there were such a thing, which there is not.
And I still don't know what the Guardian is coming to.