CORPUS CHRISTI — One $30 million unmanned aerial vehicle is not enough to patrol 1,200 miles of border between Texas and Mexico, according to a group of South Texas lawmakers. Three members of the Texas congressional delegation, including U.S. Rep. Blake Farenthold, R-Corpus Christi, on Wednesday met with state and federal officials at Naval Air Station Corpus Christi to push for additional unmanned flight operations in South Texas. Flanked by U.S. Reps. Henry Cuellar, D-Laredo, and Michael McCaul, R-Katy, Farenthold stood beside the nose of the menacing — but unarmed — Predator B drone and said Texas is a prime...