No, I do not think that at all. In fact, not spending that money would prevent us from preserving the option for the next Parliament to take the decision. The hon. Gentleman is fond of pointing out the problems in respect of the capability for the nuclear deterrent, but let me assure him that the work we are undertaking will have benefits for other classes of nuclear submarines in future— particularly in respect of the primary propulsion systems, for example with the PWR3. There are real benefits from doing this work—not just for the security of the nation in the short term, but for the long term as well.