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Nuclear Submarines

The hon. Gentleman asks sensible questions, but he is verging into speculative matters at this stage. This is a very tiny flaw in a reactor that has been hammered at maximum output over a long time. It is premature to suggest that when we examine the core we will find some systemic need to refuel all other reactors of a similar type. That is not the expectation.

However, as he would expect, we will plan for every contingency, and the measures that I have announced will allow us to preserve the option of refuelling further Vanguard and Astute submarines should that be deemed expedient in the future.