Senator BACK (Western Australia—Second Deputy Government Whip in the Senate) (14:09): My question is to the Minister for Veterans' Affairs and the minister representing the Minister for Industry, Senator Ronaldson. I refer the minister to the flawed design of the minerals resource rent tax, or the mining tax. Can the minister update the Senate on the mining tax's negative effect on resource investment? Is he aware of any opposing views and, if so, what is the government's response to those views?