I am as clear as the hon. Gentleman is that we want to ensure that we will keep the United Kingdom together. It was precisely in order to avoid that sort of customs border between GB and Northern Ireland that led to us negotiating the UK customs-wide territory in the withdrawal agreement—in the backstop as it currently appears in the withdrawal agreement. On the issue in relation to regulatory changes, of course we have indicated commitments that the UK Government would be able to make in relation to that situation as we would be respecting what we committed to in the December joint report. I am absolutely clear that everything this Government will be doing we will be doing to ensure that we keep the United Kingdom together. That means keeping Northern Ireland as part of the United Kingdom —England, Scotland and Wales, as well.