The former head of the US central bank, Alan Greenspan, has predicted that Greece will have to leave the eurozone. He told the BBC he could not see who would be willing to put up more loans to bolster Greece's struggling economy. Greece wants to re-negotiate its bailout, but Mr Greenspan said "I don't think it will be resolved without Greece leaving the eurozone". Earlier, UK Chancellor George Osborne said a Greek exit would cause "deep ructions" for Britain. Mr Greenspan, chairman of the Federal Reserve from 1987 to 2006, said: "I believe (Greece) will eventually leave. I don't think...