'Markets are facing a rerun of the Great Panic of 2008': Head of World Bank warns Europe is heading for 'danger zone' on bleakest day for global economy this year

``‘Events in Greece could trigger financial fright in Spain, Italy and across the eurozone. The summer of 2012 offers an eerie echo of 2008. ‘If Greece leaves the eurozone, the contagion is impossible to predict, just as Lehman had unexpected consequences.'''