For the fourth time this year, the German weekly Der Spiegel touts the imminent death of the euro on its cover. This time the single currency is depicted as an explosive device. "The budgetary bomb – how a great idea was transformed into a threat for Europe," the cover says. Over 20 pages, the Hamburg-based magazine explains in four steps the birth, the life, the crisis and the uncertain future of the euro. "The most dangerous currency in the world," the magazine says, "builds upon its debts and its lies with neither a base nor leadership.