FILE - In this Aug. 30, 2012 file photo, cows are seen stranded in floodwater after Hurricane Isaac came through the region, in Plaquemines Parish, La. In August, ranches on the boot of

 

              FILE - In this Aug. 30, 2012 file photo, cows are seen stranded in floodwater after Hurricane Isaac came through the region, in Plaquemines Parish, La. In August, ranches on the boot of
FILE - In this Aug. 30, 2012 file photo, cows are seen stranded in floodwater after Hurricane Isaac came through the region, in Plaquemines Parish, La. In August, ranches on the boot of Louisiana were speckled with cows and calves grazing on a smorgasbord of marsh grasses and flowers. But Hurricane Isaac took all that away, turning some of the best ranch land in Louisiana into a miles-long pond of blackish and foul-smelling floodwaters. Snakes, birds and a lot of the livestock raised here by a handful of ranching families drowned in Isaac's storm surge, which overwhelmed the weak levees protecting this farm country south of New Orleans. (AP Photo/Gerald Herbert, file)