2001 2008i-991 amateurradiostations casestudies citizenparticipation communication communicationsystemsgaredunord(paris computernetworkprotocols disasterplanning disasterrelief discrimination emergencies emergencymanagement emergencyreportingsystems finance firstresponders france france) globalhealth governmentcommunicationsystems governmentpolicy informationservices internettelephony methods mobilecommunicationsystems moralandethicalaspects naturaldisasterwarningsystems paris prevention publichealthadministration publicsafety publicsafetyradioservice radiofrequencyallocation railroadtravel saragosa september11terroristattacks servicesfor socialaspects socialmedia technologicalinnovations telephone terrorism terrorismriskcommunication texas tornadoes travelers unitedstates wa295c73352007 wirelesscommunicationsystems