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What US tariffs on steel and Chinese goods means for global trade. We hear from Laura Baughman, president of the Trade Partnership, a Washington-based consultancy that provides economic analysis on the impact of trade policies. Adrienne Murray reports from Logan County in West Virginia, where the coal industry is hoping for a revival under Donald Trump, and Manuela Saragosa speaks to Marc-William Palen, a trade historian at the University of Exeter in the UK, about the history of trade wars.

(Steel production in Indiana, United States. Credit: Getty Images)