Britain's finance industry at Brexit crossroads

LONDON (Reuters) - Britain's financial services industry, the country's biggest tax earner, risks being cut adrift from its main export market - the European Union - after Brexit.Banks, insurers and asset managers in Britain currently have free rein in seeking customers, investors and markets across the EU, helping to maintain London's standing as a top global financial centre.But with Brexit potentially only two weeks away, it is not clear exactly how much EU access Britain's financial sector..