US President Donald Trump said he will introduce new 25% tariffs on all steel and aluminium imports into the US, on top of existing metals duties, in another major escalation of his trade policy overhaul. Mr Trump, speaking to reporters on Air Force One on his way to the NFL Super Bowl in New Orleans, said he will announce the new metals tariffs today. He also said he will announce reciprocal tariffs tomorrow or Wednesday, to take effect almost immediately, applying them to all countries and matching the tariff rates levied by each country. "And very simply, if they charge...