On December 28th, 1973, President Richard Nixon signed the Endangered Species Act into law. Environmentalists are celebrating the 40th anniversary of the Act, which they say is a powerful and successful tool for preserving the nation's biodiversity. But critics say the law is costly, poorly administered and has resulted in the recovery of only a fraction of protected species.
Endangered Species Act Turns 40
Kim Delfino, California program director for Defenders of Wildlife
Peter Alagona, professor of environmental history at UC Santa Barbara and author of "After the Grizzly: Endangered Species and the Politics of Place in California"
Damien Schiff, principal attorney for the Pacific Legal Foundation