The West Block: June 26

In this week's edition of "The West Block," host Mercedes Stephenson sits down with Gen. Wayne Eyre, chief of the defence staff, to take stock of Canada’s promise to upgrade NORAD defence systems. Their discussion includes the future of Canada’s military colleges, and why he says the world sits on the brink of a "turning point." She also speaks with Marjory LeBreton, former Conservative Senate leader, about the party’s leadership race and why LeBreton said jumping on the "grievance brigade" could threaten the party’s future.