Forgive me, but I am just coming to an end.
The right hon. Member for Salford and Eccles was persuasive in arguing that if there is to be some sort of opt-out on gisting if things are really serious, only the judge should decide that. I take that point, and it is a good argument. There should be proper, explicit judicial balance in the decision to go to a CMP that takes into account all the interests of justice, and not just national security. There should be the argument of strict necessity; that is what I mean by the hierarchy. On that basis, the House could come to a conclusion in which we effectively have the best of all worlds.