Border Patrol union says new rules 'muzzle' critics of the agency BEN FOX Associated Press TEMECULA, Calif. - New labor rules proposed by the Department of Homeland Security would muzzle internal critics of the Border Patrol by making it easier to punish and fire agents, who have often been vocal critics of management policies, union officials said. The new regulations would take effect upon their release, expected in late summer or early fall. As proposed, they would make significant changes to rules covering some 50,000 Homeland Security employees, including immigration, agricultural and customs inspectors on the border. Homeland Security...