US President Donald Trump on Saturday ordered sweeping tariffs on goods from Mexico, Canada and China, demanding they stanch the flow of fentanyl — and illegal immigrants in the case of Canada and Mexico — into the United States, kicking off a trade war that could dent global growth and reignite inflation. Mexico and Canada, the top two US trading partners, immediately vowed retaliatory tariffs, while China said it would challenge Trump’s move at the World Trade Organisation and take other “countermeasures”. Read more: https://www.dawn.com/news/1889288