Let me be clear with my hon. Friend. I think that fundamental changes are coming in Europe; they are clearly coming in the eurozone. That may lead to pressures, as we saw over the weekend, for treaty change. That will present opportunities for Britain and we should respond to those opportunities. The question for the House tonight is whether it is right to go off down the path of having a referendum that includes an in/out option, just when there are big opportunities as the eurozone and the EU are changing.