With all attention on the rising Mississippi River, how safe are the state's two riverside nuclear power plants? The Riverbend facility is on the river  near St. Francisville, and the Waterford 3 plant is on the river banks  near  Taft.  Entergy  spokesperson Molly Jahncke says neither are under threat of high water.  She says Entergy isn't worried about levees overtopping near the two atomic power plants.