EconomyCanada-U.S. trade war deepens after talks collapse

The 50 per cent U.S. tariffs on billions of dollars in Canadian goods have taken effect, and Prime Minister Mark Carney is promising dollar-for-dollar retaliation after trade talks collapsed. The House examines what went wrong and what another escalation could mean for Canada, while experts debate whether the country should expand agri-food exports or prioritize food security at home.