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Associated Press
In this June 16, 2010 photo, a feedlot operation near Wisner, Neb., is seen from the air. The Environmental Protection Agency's use of airplanes to seek signs of improper disposal of livestock waste has angered ranchers and some members of Congress. The dispute is centered in Nebraska, where ranchers complain the EPA kept its aerial inspections quiet until revealing them at a meeting three months ago. (AP Photo/Nati Harnik)

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