As a lawyer, Barbara Levenson leaped head first into some controversial free speech battles. In 1987, when she was chairwoman of the American Civil Liberties Union's legal panel, she protested the placing of a 100-foot-tall cross at Tamiami Park during Pope John Paul II's visit to Miami. Two years later, Levenson played an instrumental role in fighting some of the more draconian measures of the Reagan administration's drug policy, including the seizure of leisure boats that turned up minimal t