I understand where the hon. Gentleman is coming from on this matter. He wants to criticise the US Administration, but the truth of the matter is that there has been frustration on this issue for over half a decade. We are working closely, and do work closely, with the US to try to ensure nuclear non-proliferation. I agree that it is a matter of great concern that we are living in a world where there are continued threats, from a number of unexpected quarters, towards a rules-based international system that has stood the world in very good stead over the past seven decades. I spend a lot of time in the Foreign Office on this matter. I know that the new Foreign Secretary feels just as strongly about it and will want to speak very openly about the rules-based system.