Orpheus Reed, a writer for Revolution newspaper on environmental issues, talks about the decline of populations of wild species, and how today more than one-quarter of the earth's species are threatened with extinction. Prof. Alex Rogers, Oxford University and Scientific Director of the International Program on the State of the Ocean, talks about an alarming report released this month on the impact on the ocean of climate change, pollution, decline of coral reefs and fishing. Produced by Michael Slate.