U.S. to declare 23 plant, animal species extinct

The U.S. Fish and Wildlife Service proposed moving 23 animals and plants off the endangered species list, declaring them extinct. Perhaps the most well-known of the species deemed gone forever is the ivory-billed woodpecker. These extinctions are part of an accelerating crisis driven by human actions. John Yang and Tierra Curry, a senior scientist at the Center for Biological Diversity, discuss.