I'd like to thank Chris Penk for his support. I'd like to say to Vanushi Walters that I couldn't actually find anything of substance in her speech to respond to—I'm sorry about that. Golriz Ghahraman raised the question of whether it would be possible to make legislation for tobacco control or to restrict carbon emissions. It certainly would. On carbon emissions, one would simply have to show there's a market failure. There's a tragedy of the commons. There's a justification in a free society to actually have restrictions on property rights, to put those rules in place, but a Government would have to show that the benefits of that law outweighed the cost. I think an emissions trading scheme would actually quite easily pass under the Regulatory Standards Bill. 