"DuPont Looks To Put Herbicide Lawsuits Behind It" - Trefis Team, Feb. 22, 2013 Link:
http://www.trefis.com/stock/dd/artic...ind/2013-02-22
Excerpt:
"...the company notes that predicting the impact of Imprelis on living organisms and how those organisms may react over time are significant factors driving the uncertainty of future charges."