The fate of Iran rested last night in a grubby north Tehran highway interchange called Vanak Square where – after days of violence – supporters of the official President Mahmoud Ahmadinejad at last confronted the screaming, angry Iranians who have decided that Mirhossein Mousavi should be the president of their country. Unbelievably – and I am a witness because I stood beside them – just 400 Iranian special forces police were keeping these two armies apart. There were stones and tear gas but for the first time in this epic crisis the cops promised to protect both sides. “Please, please, keep the Basiji from us,” one middle-aged lady pleaded with a special forces officer in flak jacket and helmet as the Islamic Republic’s thug-like militia appeared in their camouflage trousers and purity-white shirts only a few metres away. The cop smiled at her. “With God’s help,” he said. Two other policemen were lifted shoulder-high. “Tashakor, tashakor,” – “thank you, thank you” – the crowd roared at them.