the leading activists did so themselves, in a book called In Defense of Animals, which I edited not long ago. But one issue of importance to the movement needs to be raised in a prominent place in this book, and I do it here. That issue is violence. Activists have practiced a variety of means for advancing toward the goal of Animal Liberation. Some seek to educate the public by distributing leaflets and writing letters to newspapers. Others lobby government officials and their elected representatives in Parliament or Congress. Activist organizations hold demonstrations and protest outside places where animals are being made to suffer to serve trivial human objectives. But many become impatient with the slow progress made by such means and want to take more direct action to stop the suffering now. No one who understands just what animals are enduring can be critical of such impatience. In the face of a continuing atrocity it is scarcely enough to sit back and write letters. The need is to help the animals now. But how? The usual legitimate channels for political protest are slow and uncertain. Should one break in and free the animals? That is illegal, but the obligation to obey the law is not absolute. It was justifiably broken by those who helped runaway slaves in the American South, to mention only one possible parallel. A more serious problem is that the literal liberation of animals from laboratories and factory farms can only be a token gesture, for the researchers will simply order another batch of animals, and who can find homes for a thousand factory farm pigs or 100,000 hens? Raids by Animal Liberation Front groups in several countries have been more effective when they have obtained evidence of animal abuse that could not otherwise have come to light. In the case of the raid on Dr. Thomas Gennarelli's laboratory at the University of Pennsylvania, for example, stolen videotapes provided the evidence that finally convinced even the secretary for health and human services that the experiments must stop. It is hard to imagine