http://www.reuters.com/newsArticle.jhtml?type=scienceNews&storyID=7259267
"A pollution-eating bacteria first found in sewage sludge may have evolved its talents in response to human contamination of the environment, researchers said on Thursday."
"Because chlorinated solvents have polluted so many water sources, there is a pressing need for new techniques to clean up such pollutants,"

Great, next thing you know we'll be having firefights in the Boston harbour.