Zoe Rosenberg, a California student, is on trial over a tactic that animal rights activists consider a moral imperative. Critics say its a threat to the food supply Zoe Rosenberg, a California student, is on trial over a tactic that animal rights activists consider a moral imperative. Critics say its a threat to the food supply O n a Monday afternoon in late September, Zoe Rosenberg, a 23-year-old University of California , Berkeley, student, emerged from a courtroom in Santa Rosa, California.