Greek Finance Minister Yanis Varoufakis has taken a swipe at Switzerland for providing only limited information about wealthy tax evaders from cash-strapped Greece who are believed to have stashed billions of euros in Swiss banks. ‘Sometimes we know that someone has taken money away from Greece,’ he said ‘But we do not know in what city or which bank it is located in Switzerland.’ The finance minister, a key player in the Greek government as it struggles to reach an agreement with the European Union to finance its debt, said it was impossible to obtain such information from Swiss authorities. ‘We know too little to be able to locate the black money.’ But Varoufakis said the Greek government is working on a plan to allow tax evaders to voluntarily disclose their situation and invest their assets in Greece while paying a penalty of around 22 percent.