WASHINGTON D.C. ? The Department of Homeland Security has just identified twelve possible terrorist strikes viewed as the most plausible or devastating. Topping the list are the detonation of a nuclear device in a major city, a truck bombing of a packed sports arena and the release of a sarin nerve agent in office buildings.
The document, called the National Planning Scenarios, reads more like a doomsday plan, offering estimates of the probable deaths and economic damage caused by each type of attack. Details were published by The New York Times. which obtained the document from a Hawaii state government Web site, where it was inadvertently posted.
The hit list of attacks include blowing up a chlorine tank, killing 17,500 people and injuring more than 100,000; spreading pneumonic plague in the bathrooms of an airport, sports arena and train station, killing 2,500 and sickening 8,000 worldwide; and infecting cattle with foot-and-mouth disease at several sites, costing hundreds of millions of dollars in losses. Specific locations are not named because the events could unfold in many major metropolitan or rural areas, the document says.
The agency’s objective is not to scare the public, officials said, and they have no credible intelligence that such attacks are planned. The department did not intend to release the document publicly, but a draft of it was inadvertently posted on a Hawaiian Goverment web site.
By identifying possible attacks and specifying what government agencies should do to prevent, respond to and recover from them, Homeland Security is trying for the first time to define what prepared means, officials said.
That will help decide how billions of federal dollars are distributed in the future. Cities like New York that have targets with economic and symbolic value, or places with hazardous facilities like chemical plants could get a bigger share of agency money than before, while less vulnerable communities could receive less.
Michael Chertoff, the new secretary of homeland security, has made it clear that this risk-based planning will be a central theme of his tenure, saying that the nation must do a better job of identifying the greatest threats and then move aggressively to deal with them.
The goal of the document’s planners was not to identify every type of possible terrorist attack. It does not include an airplane hijacking, for example, because “there are well developed and tested response plans” for such an incident. Planners included the threats they considered the most plausible or devastating, and that represented a range of the calamities that communities might need to prepare for, said Marc Short, a department spokesman.
To ensure that emergency planning is adequate for most possible hazards, three catastrophic natural events are included: an influenza pandemic, a magnitude 7.2 earthquake in a major city and a slow-moving Category 5 hurricane hitting a major East Coast city.
The strike possibilities were used to create a comprehensive list of the capabilities and actions necessary to prevent attacks or handle incidents once they happen, like searching for the injured, treating the surge of victims at hospitals, distributing mass quantities of medicine and collecting the dead.
Once the White House approves the plan, which could happen within the next month, state and local governments will be asked to identify gaps in fulfilling the demands placed upon them by the possible strikes, officials said.
The most devastating of the possible attacks – as measured by loss of life and economic impact – would be a nuclear bomb, the explosion of a liquid chlorine tank and an aerosol anthrax attack.
The anthrax attack involves terrorists filling a truck with an aerosolized version of anthrax and driving through five cities over two weeks spraying it into the air. Public health officials, the report predicts, would probably not know of the initial attack until a day or two after it started. By the time it was over, an estimated 350,000 people would be exposed, and about 13,200 would die, the report predicts.
The emphasis on casualty predictions is a critical part of the process, because Homeland Security officials want to establish what kinds of demands these incidents would place upon the public health and emergency response system.
Even in some cases where the expected casualties are relatively small, the document lays out extraordinary economic consequences, as with a radiological dispersal device, known as a dirty bomb. The planning document predicts 540 initial deaths, but within 20 minutes, a radioactive plume would spread across 36 blocks, contaminating businesses, schools, shopping areas and homes, as well as transit systems and a sewage treatment plant.
The authors of the reports have tried to make each possible attack as realistic as possible, providing details on how terrorists would obtain deadly chemicals, for example, and what equipment they would be likely to use to distribute it. But the document makes clear that “the Federal Bureau of Investigation is unaware of any credible intelligence that indicates that such an attack is being planned.”
Even so, local and state governments nationwide will soon be required to collaboratively plan their responses to these possible catastrophes. Starting perhaps as early as 2006, most communities would be expected to share specially trained personnel to handle certain hazardous materials, for example, instead of each city or town having its own unit.
To prioritize spending nationwide, communities or regions will be ranked by population, population density and an inventory of critical infrastructure in the region.
The communities in the first tier, the largest jurisdictions with the highest-value targets, will be expected to prepare more comprehensively than other communities, so they would be eligible for more federal money.




