This has been discussed in the IAEA only this week. It is a serious escalation of the situation that should give the international community more cause for concern. As the right hon. and learned Gentleman is fully aware, it is essential that we achieve international unity over the next stage, which is adopting economic sanctions, especially against the decision makers in the regime. We have seen no attempt by the Iranian authorities to respond positively to our requests for diplomatic and political solutions. The door remains open, but we have no choice now but to consider economic sanctions.