By RICARDO CASTILLO Wet Politicking in Dry Chihuahua There was a faceoff this week between farmers and the National Guard (GN) at the La Boquilla reservoir on the Conchos River, which feeds into the Rio Grande at the Ojinaga-Presidio border. The GN, in charge of safekeeping the dam, had to withdraw from the facility on Tuesday, Sept. 8, to avoid