It is, said the foreign minister whose country holds the EU presidency, "the edge of a precipice the scariest moment of my ministerial life." The chief executives of Shell, Unilever and Phillips called it "one minute to midnight." Even the EU's own financial affairs commissioner, Olli Rehn, says Europe only has ten days to stop the euro falling apart. By this coming Friday, the ninth of those ten days, the continent's leaders are supposed to have agreed a plan that satisfies the markets and gives their tottering currency a future. They have tried, and failed, three times this year already....