There are so many different layers to this. Going into the day-to-day costs in pounds sterling is bad enough, but adding the uncertainty of trying to set up a whole new currency from scratch takes us into the realm of fantasy.
We have a good opportunity, through smart industrial policy, to build a healthy, thriving and contributory defence industry in Scotland. The Labour party has put smart industrial policy at the heart of our policy proposals for the next election, whenever it comes. However, it is disappointing that both the UK and Scottish Governments cannot do the same.