Emergency officials who prepared Louisiana's plan for responding to a major hurricane never guessed that one of their duties would be to protect aid workers from gunmen, one of the state's senior disaster officials said Monday. Speaking at a symposium in New York, Arthur Jones, chief of disaster recovery for Louisiana's Office of Homeland Security and Emergency Preparedness, said he was caught off guard by the violence in New Orleans following Hurricane Katrina. No disaster planner, he said, predicted that people would loot gun stores after the storm and shoot at police, rescue officials and helicopters. Jones said the flow...