Retired General Tom Lawson, former Chief of the Defence Staff, and Dennis Horak, one of Canada's last representatives to Iran before we cut off diplomatic ties; An MP panel with Liberal Caucus Chair James Maloney, Conservative House Leader Andrew Scheer and NDP House Leader Heather McPherson; The Front Bench panel with Sabrina Grover, Melanie Paradis, Karl Bélanger and Rachel Aiello.