Angela Merkel, the German chancellor, mounted stiff resistance tonight to any swift bailout of Greece, as a rift opened up between European capitals over how best to tackle the risks posed to the euro. Despite a show of Franco-German unity on the crisis and the first statement from EU leaders pledging to safeguard the currency's stability, hopes on the markets of a German-led rescue plan to shore up Greece's critical public finances were dashed by Merkel, who repeatedly emphasised that Athens would need to put its own house in order and brushed aside all questions of financial support. "Germany is...