'Bio-pharming' Worries Environmentalists

Since 1979 senior correspondent John McChesney has been with NPR, where he has served as national editor (responsible for domestic news) and senior foreign editor. Over the course of his career with NPR, McChesney covered a variety of beats and traveled extensively throughout Europe, Africa, the Middle East, Latin America and Asia. His reports can be heard on NPR's Morning Edition, All Things Considered, Weekend Edition, and newscasts.