Work is almost complete on what may be the largest study ever attempted of animal feedlots. Minnesota farmers, government officials, and environmental groups all had a role in designing the report. It has taken four years and cost three million dollars. It runs more than six-thousand pages and purports to address all the important effects of animal manure on the state. The report is so massive even its architects are hesitant to predict its impact on state policy and farm practices. But they hope it will help make Minnesota's bitter battles over feedlots a thing of the past. Mainstreet Radio's Jeff Horwich reports.