Mr DUTTON (Dickson—Leader of the Opposition) (14:01): We join with the Prime Minister in marking this anniversary. We think of those families, the first responders and others who still live with the loss and in many cases, psychologically if not physically as well, have not recovered from those treacherous events. It's changed the world. It's changed the way in which we travel and we operate. It's changed the world in many ways. All of us can recall those dark scenes as they came across our television screens, and people were watching in disbelief. I pay tribute to all of those in our country and in the United States, with our other allies, who have worked hard day and night—intelligence agencies and security agencies—to keep us safe and to prevent another similar tragedy of that scale from having taken place. It's no small achievement that we live in relative peace in this country, and I hope and pray that it always may be the case. But we should never forget those who sacrificed themselves to keep us in that position. It's something worth honouring as we commemorate the very significant loss that the United States suffered 22 years ago. The SPEAKER: As a mark of respect for those who lost their lives on September 11, I ask all members to rise in their places. Honourable members having stood in their places— The SPEAKER: I thank the House.