I will make a bit more progress. Many will ask one additional question: why are we intervening in Libya, but not in other countries around the world? It is a valid question, and it is right to say that there are many other hard cases. What is happening in Yemen is deeply troubling, and what is happening in Bahrain is equally troubling. Historically, the cases of Burma, Rwanda and other countries live on in our conscience, and yet here I do agree with the Prime Minister: the argument that because we cannot do everything we cannot do anything is a bad argument. In the world that we live in, the action that we take depends on a combination of principle and pragmatism—what is right, and what can be done. That is not perfect, but an imperfect world order is not an excuse for inaction.