Congressional Research Service The Library of CongressCRS Issue Brief for CongressReceived through the CRS WebOrder Code IB10144The Endangered Species Act (ESA) in the 109thCongress: Conflicting Values and Difficult ChoicesUpdated May 19, 2006Eugene H. Buck, M. Lynne Corn, and Pervaze A. SheikhResources, Science, and Industry DivisionPamela Baldwin and Robert MeltzAmerican Law Division