Police stand guard during a “Blockupy” demonstration near the ECB headquarters in Frankfurt

Police stand guard during an anti-capitalist “Blockupy” demonstration near the European Central Bank (ECB) headquarters in Frankfurt, May 31, 2013. Thousands of demonstrators from the movement seek to cut off access to the ECB and other financial institutions in Frankfurt on Friday, to protest their handling of Europe’s debt crisis. REUTERS/Kai Pfaffenbach (GERMANY – Tags: CIVIL UNREST BUSINESS POLITICS) – RTX106QU