An assassination attempt against a high-ranking Baja California official in Mexicali on Tuesday did little to alter perceptions about the border city as a safe place to travel through, many interviewed Wednesday said. In Calexico, a steady stream of U.S. citizens made their way across the border in vehicles and on foot. Imperial County officials and other Southern California county and city leaders met in Mexicali as scheduled for an economic summit. There were few signs that a broad-daylight, well-orchestrated ambush against the Baja California secretary of public safety had created any fear at all among border crossers. “I don’t...