Local News, Southwest, zNew Headline Texas Lt. Gov. Dewhurst validates colonia community groups’ claims that TX DPS checkpoints engaged in immigration enforcement Oct 3, 2013, 10:28 AM 0 By Steve Taylor Rio Grande Guardian EDINBURG,TX — When state Rep. Terry Canales called DPS to find out why the department was putting up random checkpoints in the poorest parts of the Rio Grande Valley he could not believe…