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The post-Zuccotti era of Occupy Wall Street began for Max Berger just after 1 a.m. on November 15, when he learned via text message that a forcible eviction of the park was close at hand. At 26, Berger is a redheaded Reed College alum and professional activist; his employers have included the Progressive Change Campaign Committee and Van Jones’s outfit, Rebuild the Dream. By hard-core standards, he had come late to the OWS action, not visiting the park until a week after the protest got going on September 17. But Berger found himself sucked in and became one of its central players. Now, with Zuccotti under siege, he raced to the park and fired off a series of frantic tweets—before being put in handcuffs. “People singing Marley!” “Press not being let in....