It is quite understandable that hon. Members who represent Northern Ireland raise concerns about this issue, but is not the key point that these arrangements will be superseded by a future free trade agreement, and that there are compelling reasons to think we can strike a deal that suits both sides, not least because of the impact on Ireland if we did not? Its GDP growth rate is currently 5%, but it will go into recession if we do not agree a UK-wide free trade agreement.