Emergency management Disaster relief 157 Disasters 114 Natural disasters 95 Crisis management 85 Prevention 78 Terrorism 74 more ... Government policy 59 Planning 55 Risk management 47 Disaster medicine 45 Social aspects 45 Civil defense 44 Risk assessment 44 Safety measures 43 Emergency medical services 42 Hurricane Katrina, 2005 41 Security measures 39 Hazard mitigation 36 National security 36 Management 30 Public health 30 Business planning 28 Climatic changes 28 Health aspects 28 Preparedness 26 Evaluation 23 Bioterrorism 22 Medical emergencies 22 Economic aspects 21 less ...