So these suite of changes that have been made to the ETS in response to the collapse of the Kyoto Protocol and the oversupply of units internationally have been absolutely the right thing to do. It's right that we have a confidential reserve in an auction. It's really no different to the confidential reserve that the seller of just about any item at auction uses to protect their interests. There are additional protections that the select committee have put in place, which I think are good, and that's the involvement of the Minister of Finance, which others have explained. Accordingly, I think it's clear that this is desirable.