Fears grow over Greek debt default despite bail-out

``nvestors' flight from Greek government debt left 10-year bond yields at a new euro lifetime high of over 13pc and yields on two-year bonds at over 18pc, after Wolfgang Schaeuble said "additional steps" could be necessary if the European Central Bank concludes that the country's burden is unsustainable... Although Greece is not expected to default officially on the principal amount, holders of its debt may agree to reduce the interest rate and lengthen the terms of the loans. The effect would be largely similar to a default, as the value of the debt would fall. ''