By Mariana Mart&iacute;nez &nbsp;&nbsp;&nbsp; Three walls were divided those attending the traditional Posada without Borders this year. &nbsp;&nbsp;&nbsp; Three walls, a dozen Border Patrol Agents and stricter regulations where all obstacles in the annual celebration held at the border fence during the holidays. &nbsp;&nbsp;&nbsp; The Posada started around 2:00 pm last Saturday, when a group [...]