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Lisbon Treaty (No.1)

I am grateful to the right hon. Gentleman for giving way again; he has been very generous. He was talking about where these laws come from, and about irrevocability. I have debated these matters with people of his persuasion over many years, and the point was often made that we could not leave the European Union, that our membership was irrevocable, that we had been locked in and that the key had been thrown away. That has always been nonsense. As we know, Greenland left the European Union. Will he concede that, in this treaty, for the very first time, there is a clear article admitting of the possibility of any member state seceding at any point? To talk about irrevocability is therefore, frankly, nonsense.