In this Sept. 4, 2012, photo, the sun casts a shadow on the U.S.-Mexico border fence that passes through the Nature Conservancy's southernmost preserve in Brownsville, Texas. Since 200

 

              In this Sept. 4, 2012, photo, the sun casts a shadow on the U.S.-Mexico  border fence that passes through the Nature Conservancy
In this Sept. 4, 2012, photo, the sun casts a shadow on the U.S.-Mexico border fence that passes through the Nature Conservancy's southernmost preserve in Brownsville, Texas. Since 2008, hundreds of landowners on the border have sought fair prices for property that was condemned to make way for the fence, but many of them received initial offers that were far below market value. (AP Photo/Eric Gay)