Mr SHORTEN (Maribyrnong—Leader of the Opposition) (14:00): My question is to the Prime Minister. This morning, in an extraordinary interview with David Speers on Sky News, the Prime Minister said of his 10-year tax cut for big business, 'The Treasury has not identified the dollar cost of that particular item.' Why did the Prime Minister make his 10-year plan the centrepiece of his budget when, by his own admission, he has not even asked Treasury to identify the 10-year cost? Mr Pyne interjecting— The SPEAKER: The Leader of the House will cease interjecting.