- "This is a real mess," says one analyst. "These levels are shocking."
- President of the Navajo Nation announces intent to take legal action against the EPA
- Spill is three times larger than originally estimated, U.S. Geological Survey says
(CNN)The mustard hue of the Animas River in Colorado -- the most visible effect of a mistake by the Environmental Protection Agency that dumped millions of gallons of pollutants into the water -- is striking.