The mishandling of the situation in New Orleans after Katrina and the inability of authorities to deal with the problem highlights the difficulties organisations have with risk analysis. Part of the problem is that the human mind is ill-equipped for low-probability, high-consequence scenarios as we are trapped by the "availability bias''. Businesses should plan for becoming self-sufficient after any large-scale disaster, and companies should encourage employees to do their own disaster planning, security experts told CSO magazine. The piece also has good links to three nightmare scenarios of a flu pandemic, massive cyber attack and new flood zones, and 14 other scary scenarios which range from attacks by terrorists using nuclear devices to natural disasters, like Categegory Five hurricanes.