A new update to U.S. Customs and Border Protection’s plans for a border wall indicates that 30-foot wall segments will be built in two parts of Big Bend Ranch State Park, the latest in a series of mixed messaging about construction in the region.Wall segments are currently planned to be built through about 2 miles of the state park’s westernmost sections that run close to the U.S.-Mexico border, according to the CBP “Smart Wall Map,” which displays wall construction plans nationally. The map has frequently been updated to add and remove border wall plans in Big Bend for months, and ...