Senator DI NATALE (Victoria—Leader of the Australian Greens) (14:18): Mr President, I ask a further supplementary question. The Attorney-General often reminds us of his legal expertise, so I am sure he is familiar with Lord Sumner, who characterised the legal concept of wilful blindness by saying: 'A man is said not to know because he does not want to know. The full details or precise proofs may be dangerous because they may embarrass his denials or compromise this protests. He flatters himself while his ignorance is safe.' Attorney-General, does this summarise your position?