Guest: Tonda MacCharles, Ottawa-based reporter covering federal politics When Ukrainian President Volodymyr Zelenskyy tweeted about speaking to Canadian Prime Minister Justin Trudeau on Thursday, there was an urgent plea between the lines of the diplomacy: help stop Russia's relentless attack on Ukraine. Canada has rolled out new measures since the assault began, including trade restrictions on Russia, lethal aid for the military and a new fast track to Canada for Ukrainians fleeing the war. But as Europe's greatest security crisis in decades escalates seemingly undeterred by global warnings, the question being raised within Ukraine and around the world is: what will it really take to stop Russia? Tonda MacCharles shares the view from Ottawa. This episode was produced by Saba Eitizaz, Brian Bradley and Matthew Hearn