Robert F. Kennedy Jr., the head of the Waterkeeper Alliance, is representing property owners along the Missouri/Oklahoma border in an environmental lawsuit against Tyson Foods.

The citizens allege that the Tyson processing plant near Noel, MO, discharges wastewater into the Elk River, which flows from Missouri into Oklahoma's Grand Lake of the Cherokees. The suit also seeks to make Tyson liable for manure, spread by contract growers on their land, which is allegedly leaching into the lake.

Kennedy and the Waterkeeper Alliance are also suing Smithfield Foods over environmental issues in North Carolina's coastal plain.