Yes, there's a challenge about theoretical costs, but costs are actually being soaked up now. For example, there's the additional cost that the health service across the four nations of the UK is undertaking to increase storage capacity, and the costs that we are spending now on planning for potential scenarios, when we know that at least one scenario is not going to be—well, more than one scenario is not going to be the reality where we find ourselves at the end of March. Every Government within the United Kingdom is having to run through this particular challenge. Officials regularly speak to each other, as well as our individual conversations within each of the four UK nations. I do hope to be in a position to provide more information about cost, about the arrangements that we are undertaking. I also hope that there will be a positive response from health Minister counterparts across the UK—four health Ministers of different Governments and different political backgrounds—to nevertheless have a constructive and upfront conversation about what we can do to support each other, and the risks that we each recognise exist, depending on whatever form of Brexit occurs, should we leave the European Union, and the impact that would have on our health and social care system. I know that my colleague in Scotland is equally keen to have that meeting with our counterpart in the United Kingdom Government and whoever would attend from the Northern Ireland Government—whichever official that may be.