Late last week, Mexico appears to have taken the US "border-crossing" issue to a whole new level even if it was really a case of a drug bust gone horribly wrong, when as AP reported, on Thursday Mexican law enforcement crossed into Arizona by helicopter and fired two shots at U.S. border agents, a border patrol union leader says. According to the Customs and Border Protection: "At approximately 5:45 a.m. Thursday morning, a Mexican law-enforcement helicopter crossed approximately 100 yards north into Arizona nearly 8 miles southwest of the Village of San Miguel on the Tohono O'odham Indian Nation while on a law-enforcement operation near the border. Two shots were fired from the helicopter, but no injuries or damage to U.S. property were reported. The incident is currently under investigation." Art del Cueto, president of the local border patrol union, said four agents were in a marked patrol vehicle when they were shot at. "They could say they didn't fire at the agents intentionally. But for them to say that they were no shots fired within the United States, toward the United States Border Patrol, is a lie. They got in contact with our managers and apologized for the incident," del Cueto said.