Public Record 2011 Ottawa Conference on Defence and SecurityOn February 24th and 25th, 2011, the CDA Institute and the Conference of Defence Associations held the 2011 Ottawa Conference on Defence and Security.In the first panel discussion, Michael Wilson, former Canadian ambassador to the United States, Lt.-Gen. Frank Grass, deputy commander of U.S. Northern Command, James Blanchard, former U.S. ambassador to Canada, discussed Canada-US security interests 10 years after the 9/11 attacks.