Reporting from Denver, Scott Schlegel reviews the history of environmental problems at the Rocky Flats nuclear weapons plant.
Judge Releases Rocky Flats Report
Rocky Flats Investigation
Buffalo Commons
Sioux Say No to Trash, and Cash
Plains into Desert
Scott Schlegel reports on the drying-out of parts of the Great Plains. A decade of hot, dry weather has caused the reemergence of moving sand dunes, which threaten farms, roads and communities. Scientists say it could be a sign of global warming.