BERKELEY -- Amid screams, the buzz of a news helicopter and the rattle of barricades by angry people in the street, UC Berkeley today dismantled more of the tree-top encampment of protesters in a grove of trees next to Memorial Stadium. A crew of arborists and workers hired by the campus engaged in their second day of cutting ropes, removing supplies and tearing out improvised structures as tree-sitter sympathizers yelled at the workers from Piedmont Avenue and at stern-faced UC police who ringed the site. By early afternoon, virtually all of the protesters' ropes were gone. The year-and-a-half-old tree protest...