BERKELEY, Calif. — University of California officials have won the legal right to oust a band of tree-sitters who've taken up residence in an oak grove standing in the way of a planned sports center. But how do you uproot a tree-sitter in Berkeley, one of America's most politically correct cities? "Extremely difficult," acknowledges campus spokesman Dan Mogulof. As the protest nears its one-year anniversary, plenty of people have suggestions: Fire hoses, skunk spray and tranquilizer darts are among the thorny ideas Internet posters have planted. So far, the university has moved cautiously. The university wants to remove dozens of...