Duties of Customs

Does the right hon. Gentleman also agree that if the Government were to have a change of heart and agreed to ask to remain in the single market, that would take out two of the three stumbling-blocks? The rights of EU and UK citizens would be solved immediately, and the Irish question, although not completely answered, would be made a lot more soluble. We would then be left with the financial settlement as the only stumbling block to getting on to talk about trade deals, which is what we want to do.