That is a question I would have expected from such a sophisticated Select Committee Chair. The problem is that although the arbitration system applies to the protocol, the question that one asks the arbitrator is at the heart of the effectiveness of any arbitration. Although I am not at this stage able to disclose to the right hon. Gentleman the question that has been proposed by the United Kingdom to the Commission, the question is everything. He may very well need to take that into account, because the question about when the protocol would end is likely to be determinative of whether the mechanism is effective.