I thank the hon. Gentleman for bringing this matter forward. It is a very important initiative. It is just a pity that it is coming at this time, given where we are. Does he understand that these systems, which create a digital border in Northern Ireland and, indeed, in the Republic of Ireland, have been in place since the peace walls came down? That is a fair while ago. Such an approach is, and can be, both sensible and prudent for the region and could be something that happens elsewhere.