That is an interesting point, but you cannot pick and choose. You cannot simply decide that you do not agree with something at a particular time and abandon it. If we suddenly decided, because a new Government with a particular political ideology had been elected, to abandon a treaty with X and another with Y, we would have no case with respect to numerous countries around the world. As we have heard from the noble Lord, Lord Patten, the new Chinese Government simply abandoned everything that they negotiated on the withdrawal from Hong Kong. That is a new circumstance, but it is not right in any sense of the word that they unilaterally abandoned the international treaty.
That is the fundamental point at the heart of what the noble Viscount, Lord Hailsham, is saying. The proud tradition of this country—not just his party—is to adhere to international agreements, to be able to walk into a room full of diplomats and for them to know that, when we say something, we mean it and it will be adhered to. Sometimes it is on the basis of trust built up over decades, and we play with it at our peril.