JUST IN: Airline workers are beginning to put a legal barrier between ICE and passengers. Southwest employees have repeatedly refused to give ICE agents access to flights or passenger information without proper legal authority. In one Dallas encounter, a gate agent rejected an administrative immigration warrant and required a judicial warrant signed by a judge before allowing agents aboard. Employees also refused to let ICE view passenger information on their computer screens. The stakes are becoming increasingly real for travelers. Bay Area resident Chantal Morales Rojas was approached by ICE while returning to Oakland; her attorney says she had been legally working under federal employment authorization.