It was surprising news when the Center for Biological Diversity announced it had signed an out-of-court agreement regarding endangered species with its longtime adversaries at the U.S. Fish & Wildlife Service. With a decade-long winning streak in court, the Tucson-based Center has become arguably the most important entity in the Endangered Species Act debate. Why wouldn't the organization want to continue kicking butt in court, especially since Gail Norton had replaced Bruce Babbitt as head of the Interior