The talks are still alive. Just. Iranian and US diplomats, engaging indirectly through Omani intermediaries, have yet to make any substantive progress towards a framework of understanding that governs further talks – as Kafkaesque as that might sound – but they are talking, and that is the best that the diplomats can hope for right now. What separates Iran and America is a vast chasm between their respective red lines, and beyond that, the very substance of the talks themselves. The US is not willing to countenance an Iran that enriches uranium, has a ballistic missile programme and arms proxies...