U.S. tariffs 'unjustified', PM May tells Trump on call

British Prime Minister Theresa May told President Donald Trump on Monday that U.S. tariffs imposed on European Union steel and aluminium imports were "unjustified and deeply disappointing" during a phone call.Trump has infuriated European Union members, Canada and Mexico by imposing tariffs of 25 percent on steel and 10 percent on aluminium, ending months of uncertainty about potential exemptions and suggesting a hardening of the U.S. approach to trade negotiations."The prime minister raised the