The scene was strange: Occupy activists camped in front of the European Central Bank in Frankfurt for 297 days and were not discouraged. They braved the rain, the cold, the police and the coaxing of bank employees. They persevered resolutely on the wet lawn - but what for? The Occupy activists did not raise a single specific demand. They had painted posters that read "Put the banks in their place" or "We are 99 percent". But beyond these general accusations,...