VIDEO: Mussels to Help Reverse Decades-Old D.C. Pollution

The effort to clean up Washington D.C.'s Anacostia River has a mountain of history to overcome. For years, toxic sediment from Navy munitions and other waste went right into the river. Now, a pilot program is putting mussels to work filtering the water.

Bay Bulletin's Cheryl Costello went out with the Anacostia Watershed Society to see what environmentalists hope to achieve with the help of these bivalves.

Megan Viviano