Critics say border wall could harm wildlife corridors and sensitive desert terrain

New Mexico's bootheel region along the U.S.-Mexico border is an important wildlife corridor. There is currently no border wall in this area but environmentalists are concerned about what could happen if the wall is expanded.
New Mexico's bootheel region along the U.S.-Mexico border is an important wildlife corridor. There is currently no border wall in this area but environmentalists are concerned about what could happen if the wall is expanded.