Senator WONG (South Australia—Minister for Finance and Deregulation) (14:37): First, in terms of the mining tax, the position of the opposition seems variously to be that this is a tax that will end the mining industry and that this is a tax that will not actually raise any money. If it is a tax that will not raise any money, then presumably it will not actually end the mining industry. You cannot even work out which scare campaign is the most convenient, Senator Cormann. You cannot even work out which part of your opposition to this campaign is the most convenient, because you say both that it will end the world as we know it, in terms of the mining industry, and that it will not raise any revenue. I start with making that point, because I think everyone should be very clear about where Senator Cormann is coming from—which is all over the place. He simply wants to say no. It does not matter what the proposition is when it comes to the government's policies. He simply wants to say no. In terms of the revenue that is to be raised— Senator Cormann: Mr President, I rise on a point of order in relation to the requirement for the minister to be directly relevant. UBS is clearly on to something, because the minister is steadfastly refusing to be directly relevant to the question, which is how the government is going to fund that $8.6 billion shortfall. The PRESIDENT: You are now debating it. I do draw the minister's attention to the question. Senator WONG: In relation to the revenue projections, we did revise MRRT receipts in the most recent budget figures. The revision has been to a figure of $13.4 billion over the forward estimates. It is the case, and we have said so publicly, that how much revenue the MRRT will raise will obviously depend on a range of factors, including commodity prices, exchange rates and production volumes. I am also asked about black holes. Senator Cormann should turn around and tell his colleagues how he is going to find $70 billion worth of cuts to services. He asked about black holes. Well, he should know about them. Those on that side—the economic team on the Liberal Party's side, the coalition's side—have done nothing but preside over costings errors and black holes to the self-confessed tune of $70 billion.