NPR News covers President Trump’s threat to expand tariffs on Canadian auto and steel imports, prompting retaliatory measures from Prime Minister Mark Carney. The broadcast also details new U.S. sanctions aimed at financially isolating Iran, despite diplomatic skepticism about their effectiveness. Additionally, reports highlight the rapidly spreading Hawk Fire in Nevada, China’s postponement of its Chang’e 7 lunar mission, and New Zealand’s legislation to ban social media for children under 16.