Senator EDWARDS (South Australia) (15:02): Mr President, I have a supplementary question for the minister. Does the minister agree that, given that South Australians already pay the highest state taxes in Australia and are burdened with the nation's most expensive and worst-performing workers' compensation scheme, the people of the state do not need the carbon and mining taxes smothering any potential economic growth for South Australia? Shouldn't the most senior federal Labor minister for South Australia be beside herself with worries about the dangers to this economy? Honourable senators interjecting— The PRESIDENT: Order! When there is silence on both sides, we will proceed.