Proposed border wall threatens prehistoric cave art

The Department of Homeland Security has proposed a border wall along the Rio Grande. But recently, a portion near Big Bend was put on hold. However, in Val Verde County, residents have received letters stating the government's intent to build a border wall. Some are concerned the proposed wall could span directly over prehistoric rock art recognized as a National Historic Landmark. KSAT's Justin Horne spoke with a landowner in Langtry, Texas, who has cave art on his property.