The right hon. Gentleman is right, but they are not mutually exclusive. We can and should do both. Diversification will not happen overnight, which is one reason why I want to proceed as swiftly as possible with that track. It will take time for us to develop diversification in the market, but none the less we should seek to do so in the longer term. In the shorter term, he is also right—he knows this from his ISC work—that part of the reason why we want a larger number of suppliers in the system is not simply that it is commercially and economically beneficial, but that there is a security benefit too. Having several different suppliers’ equipment in the system helps to prevent overdependence on any one supplier’s equipment. That is an obvious security imperative. We should do that. It is part of the calculation we make about the security imperative in this decision.