Book Review - Barbara Walter does not expect to see a civil war in the US of the order of the conflict that tore the nation apart in the 1860s, but that's chiefly because civil wars are fought differently these days. And it's about the only comfort a concerned reader can take from this sobering account of how civil wars start and are conducted in our time. Walter is a professor of international relations at the University of California, San Diego, and a consultant to various government and international agencies. She ha