"Disaster can strike anyone, in any community and at any time. It can take many forms, building over time, or hitting suddenly without warning. Whatever the scenario, as the nation's lead emergency management and preparedness agency, FEMA [Federal Emergency Management Agency] is there, ahead of disaster to help prepare for the worst and to provide care and assistance after. FEMA's mission is to reduce the loss of life and property and protect communities nationwide from all hazards, including natural disasters, acts of terrorism, and other man-made disasters. FEMA leads and supports the nation in a risk-based, comprehensive emergency management system of preparedness, protection, response, recovery and mitigation."
Federal Emergency Management Agency: http://www.fema.gov/