A meeting of world powers in London on the Iran nuclear crisis has been postponed in order to fine-tune European Union proposals to Tehran, Britain said. The meeting — involving senior diplomatic officials from Britain, China, France, Germany, Russia and the United States — would likely take place in the next 10 days or so, a Foreign Office spokesman told AFP. “The reason is to allow more detailed preparations on the EU-3 proposals to Iran,” he said. Those proposals — set out by London, Paris and Berlin — would offer incentives to Tehran if it halts sensititive nuclear work. Full Story