FFIEC – Federal Financial Institutions Examination Council came out with a very effective guide that will help in your disaster recovery business resumption plan, it is called " Lessons Learned from Hurricane Katrina: Preparing your institution for a Catastrophic Event" some of the hardships experienced by some of the institutions impacted by Katrina's aftermath were power outages which prevented the use of computers, communication outages – the cellular phone towers where damaged and not working and transportation was halted. Some of the solutions found in the guide: Disaster Drills should be relevant to a specific location, consider the following Infrastructure, Population centers, Weather, Threats of terrorism, chance of natural disasters. Always consider worst case scenario.