Emergency management Safety measures Conservation and restoration 11 Planning 11 Library materials 9 Security measures 8 Library buildings 7 more ... Prevention 6 Disaster relief 5 Libraries 5 Management 5 Data protection 4 Natural disasters 4 Aeronautics 3 Archives 3 Biological warfare 3 Cities and towns 3 Computer security 3 Disasters 3 Evaluation 3 Government policy 3 Library planning 3 Medical emergencies 3 Nuclear reactors 3 Policy sciences 3 Political planning 3 Schools 3 Terrorism 3 Accidents 2 Backup processing alternatives 2 less ...