Senator MARK BISHOP (Western Australia) (14:14): Mr President, I ask a further supplementary question. Can the minister outline why it is important for the government to show fiscal discipline through the budget process? Is the minister aware of any threats to fiscal discipline and to plans to return the budget to surplus? Honourable senators interjecting— The PRESIDENT: When there is silence we will proceed. Honourable senators interjecting— The PRESIDENT: The time for debate is at the end of question time, not now. This is just using up valuable time on both sides. Senator Arbib.