Frictionless trade impossible if UK leaves EU single market, says Barnier

EU chief negotiator says there is no cost-free way to leave bloc and cites 19% tariffs on British beer as possible cost of ‘no deal’The UK cannot leave the EU single market and keep the benefits, the EU’s chief Brexit negotiator has said in his first major speech since talks began last month.Michel Barnier said he had warned the British government there was no cost-free way to leave the single market and said some people in the UK had not understood that Britain cannot leave th