My hon. Friend is absolutely right that the JCPOA is a cornerstone. It is critical for our security, not least because nuclear proliferation in that region of all regions would be calamitous. We therefore remain committed to it—as he rightly points out, it is the result of hard work over more than a decade of diplomacy. In the 18 years that we have been Members of Parliament, he has taken great interest in these matters; I very much respect his thoughtful contributions.
I ask my hon. Friend, and all hon. Members, to be assured that diplomacy continues. I very much hope to go to Tehran shortly, where we have an outstanding ambassador in Rob Macaire. As I pointed out earlier, we are working tirelessly on a mechanism to ensure that trade can continue, and that prosperity can therefore return to Iran; we were doing that in Brussels in the past 24 hours. Continued work is very much on our mind. We believe that the deal is broadly working, and is therefore delivering on its goal to ensure that Iran’s nuclear programme remains exclusively peaceful.