Texas farm and ranch land along the Rio Grande River in deep South Texas is well suited for agriculture, a place where crops, forage and livestock flourish on rich soil. But in a time when farmland values are exceptionally strong, thousands of acres of this prime property is currently available for below market value, yet few potential buyers are giving the property a second look. A local farm and ranch realtor, Terry Urdal in McAllen, says few buyers are willing to gamble on property plagued by serious border issues including drug cartel violence and an increasing influx of illegal immigrants...