SAN BERNARDINO - In the immigration battle being waged at the border, a local network of largely Latino activists is taking a new tack to counter volunteers who are monitoring the border for illegal crossings. On May 1, the National Alliance for Human Rights will try to "close the border' by persuading those intending to cross over legally from Agua Prieta, Mexico, to Douglas, Ariz., not to do so for several hours. The strategy "is a notice' to Minuteman project volunteers, who have recently announced their plans to extend their Arizona-border monitoring project for several additional months and to other...