and when that event occurs. Because the harm was minimized, the people then wonder whether the preparation was necessary. Disaster preparation can be hampered by several cognitive biases and features of certain types of disasters: Preparedness measures Preparedness measures can take many forms ranging from focusing on individual people, locations or incidents to broader, government-based "all hazard" planning. There are a number of preparedness stages between "all hazard" and individual planning, generally involving some combination of both mitigation and response planning. Business continuity planning encourages businesses to have a Disaster Recovery Plan. Community- and faith-based organizations mitigation efforts promote field response teams and inter-agency planning. School-based response teams cover everything from live shooters to gas leaks and nearby bank robberies. Educational institutions plan for cyberattacks and windstorms. Industry specific guidance exists for horse farms, boat owners and more. A 2013 survey found that only 19% of American families felt that they were "very prepared" for a disaster. The basic theme behind preparedness is to be ready for an emergency and there are a number of different variations of being ready based on an assessment of what sort of threats exist. Nonetheless, there is basic guidance for preparedness that is common despite an area's specific dangers. FEMA recommends that everyone have a three-day survival kit for their household. The CDC has its own list for a proper disaster supply kit. Like children, people with disabilities and other special needs have special emergency preparation needs. Depending on the disability, specific emergency preparations may be required. FEMA's suggestions for people with disabilities include having copies of prescriptions, charging devices for medical devices such as motorized wheelchairs and a week's supply of medication readily available or in a "go stay kit." In some instances, a lack of competency in English may lead to special preparation requirements and communication efforts for both individuals and responders. The United States Department of Energy states that 'homeowners, business owners, and local leaders may have to take an active role in dealing with energy disruptions on their own." This active role may include installing or other procuring generators that are either portable or permanently mounted and run on fuels such as propane or natural gas or gasoline. The United States Department of Health and Human Services addresses specific emergency preparedness issues hospitals may have to respond to, including maintaining a safe temperature, providing adequate electricity for life support systems