We very much welcome the US Administration's willingness to engage directly with Iran, which I think is what my hon. Friend was referring to. However, no one should be in any doubt that President Obama has made it clear that a nuclear-armed Iran is unacceptable. Iran has to make a choice between, on the one hand, the very generous E3 plus 3 offer and a transformed relationship with the international community and, on the other hand, continuing on the path of confrontation, increasing isolation, and tougher and expanded sanctions.