Canada’s Prime Minister Justin Trudeau has invoked the Emergencies Act to deal with the nationwide trucker protests that have caused bottlenecks at international bridges and paralyzed the country’s capital, Ottawa. Trudeau’s father, Pierre Trudeau, used a similar Act in 1970, after a splinter group of Quebec separatists kidnapped a provincial minister and British diplomat. Marco Werman speaks with Stephanie Carvin, a professor of international relations at Carleton University in Ottawa and former national security analyst for the Canadian government.