Jimlad,
I think most people here understand the obvious advantages of SLBMs, so me real need to set us homework. Again, the exam question here was COULD not SHOULD. It's not necessarily about what the strategically superior option is, it's also about a number of interesting factors in the fiscal and political arenas.
No one is trying to take away the RN's ownership of this important role, just enjoying considering the question.
Thank you for the links, though. I suspect the Government will want to ask the questions again; a lot changes in ten years - not least the answer they may want from a review.
NAB,
I would hope we only fire nukes at SPECIFIED targets.