I would like to speak first about new clause 13, because, for my constituency, the customs union is absolutely vital. I have a lot of constituents involved in manufacturing-pharmaceuticals and the automotive industry, for example. On pharmaceuticals, I think Glaxo told the Health Committee yesterday that the cost it has already faced in making plans for how to deal with Brexit is £70 million. We keep asking Ministers for certainty, and there is none. For farmers, this issue is also absolutely crucial. There is a big risk with the free trade agreements Conservative Members are arguing for that we get floods of cheap lamb imports coming in. That will destroy the uplands. It will destroy not just farming livelihoods but the British countryside. On the automotive industry, my hon. Friends have spoken about the importance of having shared regulation. How do Conservative Members think the European Union will agree with them to have no tariffs if it thinks that we are going to compete on different regulatory standards? It is not going to agree that. Conservative Members need to get into the real world. Let us look also at the scope for these new great, fantastic free trade agreements, taking New Zealand as an example. Its economy is the same size as the Greek economy. This is not some great, fabulous opportunity. All that the New Zealanders and the Australians want to do-whatever sentimentality people have about the Commonwealth-is to sell their agricultural produce into the British market. Conservative Members were enthusiastic about the idea that they could do these deals quickly. In fact, because other parts of the world also have regional trading blocs, that is highly unlikely. Latin American countries, for example, belong to a regional trading block called Mercosur. They are going to be going at the pace of the slowest, not the fastest. The reason why I think there is a distinction to be drawn between the customs union and the single market is the Irish border. Membership of the customs union is vital for the maintenance of the soft border, in a way that membership of the single market is not. That is because of the nature of free movement. What does free movement mean? It does not mean being able to go somewhere on holiday. It does not mean Schengen-we are not in Schengen now. Free movement means being able to have a job and to take part in the social security system elsewhere. The way to deal with the free movement problem, which is undoubtedly the immigration problem that has been raised by our constituents on the doorsteps over the last two years, is to change the rules about who can work and who can be eligible for social security in this country; it is to stop giving out national insurance numbers like confetti, as we do at the moment. I am therefore pleased that we have had this separate moment to look at the customs union, and I hope that hon. Members will reflect more carefully on the great significance of the customs union for achieving what we want in Ireland. I must say that I am not yet reassured by what the Minister said at the Dispatch Box about amendments 381 and 400. When amendment 7 was passed last week, there was a shift in power from the Executive to Parliament. With amendment 381, whether or not it is amended by amendment 400, we are seeing the Executive yank back control to set the exit date. What Ministers have not been able to explain to us this afternoon is what happens if the legislation under amendment 7 is not passed. They can still set the exit date. I was going to say that Opposition Members see the Tory party as extremely unstable. We are not convinced that this Government, in their current form, will last the course. However, I could not say that nearly as fluently or as lucidly as the right hon. Member for Broxtowe (Anna Soubry) said it. She laid out the problems and the divisions far more fully than I ever could. But even if we do not look into the future, we can all be alarmed by what the Prime Minister said to the Liaison Committee this afternoon. That is why we cannot be confident in what this Government are doing, and that is why amendments 381 and 400 fatally undermine amendment 7.