Senator MILNE (Tasmania—Leader of the Australian Greens) (14:23): Mr President, I ask a further supplementary question. Government senators interjecting— The PRESIDENT: Just a moment, Senator Milne. Order on my right. Senator MILNE: Hopefully, the minister might be able to answer this question: will the minister now agree to implement alternative revenue proposals, such as applying a levy on the big four banks or clamping down domestically on corporate tax evasion as he told the G20 he was prepared to do?