The US and Iran raised the stakes yesterday ahead of this week's nuclear showdown in Geneva, with threats of global strife if no resolution is found.
The sharpened rhetoric followed Friday's revelation that Iran had been building a secret uranium enrichment plant under a mountain near Qom, and it points towards a new wave of sanctions that go far beyond the targeted financial measures imposed on Iran so far.
Speaking at the G20 summit in Pittsburgh, Barack Obama declared: "Iran is on notice that when we meet with them on 1 October they are going to have to come clean, and they will have to make a choice." The alternative to sticking to international rules on Iran's nuclear development, he said, would be "a path that is going to lead to confrontation".
Iran and United States on collision course over nuclear plant | World news | The Observer
Iran defiant over secret nuclear facility
BBC Iran conceal nuclear facility
