IAN McKELVIE: I don't want to talk about it for long, I'd have to say. Tax bills, interestingly, are a necessary evil, in my view, and they come through Parliament frequently. It's very interesting, when you look at this bill; it's amending some things that came through Parliament in the last tax bill. So that's how quickly things need to be changed in this sector, and it is a very complicated sector. I think the thing that makes it so complicated is that the moment that we write a tax bill, someone's found a way round it, and that's one of the challenges of tax. They haven't found a way round it; they've found a way that that tax bill doesn't exactly do what it's meant to do.