Senator PAYNE (New South Wales—Minister for Defence) (14:18): I didn't actually follow Senator Di Natale's question, but what I can say is that in relation to the prosecution of the coalition presence in the Middle East, over many years now, the Greens have hardly covered themselves in glory in terms of their appreciation of the challenges faced by the men and women of the ADF, just for starters, let alone those other participants. So, I hardly think that you are in a position to call into question the sorts of issues that you have raised, Senator Di Natale, because you don't come here with any credibility whatsoever. The PRESIDENT: Senator Hinch, were you raising a point of order? Senator Hinch: I could not hear the defence minister's answer. The PRESIDENT: On that basis, I again remind my colleagues that we've had a number of requests from that end of the chamber for there to be silence so the answers may be heard. Senator Di Natale, a supplementary question?