The Sacramento-San Joaquin Delta is one of the biggest ecological train wrecks in the nation, the focal point of a tectonic smash-up between human needs and natural dynamics. In consequence, it also has become perhaps the most-studied and squabbled-over body of water in the West. The latest contributions to that voluminous body of work are the final report of a governor-appointed "Blue Ribbon Task Force," and a federal court ruling.