Senator McGRATH (Queensland) (14:20): Why won't the minister take responsibility for the so-called mistakes in the RIS document, instead of blaming junior departmental officials? Take responsibility. Shame on you! Honourable senators interjecting— The PRESIDENT: Senator McGrath, I would ask you to be silent. You've asked your question. Senator Cash, I would ask you to be silent. Senator Wong, I will ask you to be silent as well. Senator McGrath interjecting— The PRESIDENT: Senator McGrath, I just directed you to be quiet.