Scotland Bill

The noble and learned Lord has not been listening to my speech. Frankly, I do not blame him—but I did say that one reason that I tabled this and the other amendment was to get rid of that general power, which I regard as highly undesirable. Perhaps he could help me; why is the fact that the UK Government are reviewing what they want to do about air passenger duty an argument against giving the responsibility to the Scottish Parliament? If it is decided that they are going to abolish or double air passenger duty, or whatever, the revenue may halve or double. We have already been told in a long debate that there is compensation for this, so why on earth would the Government not put it in the Bill now? The fact that they are reviewing it is surely irrelevant.