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Nuclear Terrorism

The Ultimate Preventable Catastrophe

Book Excerpt: by Graham Allison, Times Books

On October 11, 2001, a month to the day after the terrorist assault on the World Trade Center and the Pentagon, President George W. Bush faced an even more terrifying prospect. At that morning's Presidential Daily Intelligence Briefing, George Tenet, the director of central intelligence, informed the president that a CIA agent code-named Dragonfire had reported that Al Qaeda terrorists possessed a ten-kiloton nuclear bomb, evidently stolen from the Russian arsenal. According to Dragonfire, this nuclear weapon was now on American soil, in New York City.

The CIA had no independent confirmation of this report, but neither did it have any basis on which to dismiss it. Did Russia's arsenal include a large number of ten-kiloton weapons? Yes. Could the Russian government account for all the nuclear weapons the Soviet Union had built during the Cold War? No. Could Al Qaeda have acquired one or more of these weapons? Yes. Could it have smuggled a nuclear weapon through American border controls into New York City without anyone's knowledge? Yes. In a moment of gallows humor, someone quipped that the terrorists could have wrapped the bomb in one of the bales of marijuana that are routinely smuggled into cities like New York.

In the hours that followed, national security adviser Condoleezza Rice analyzed what strategists call the "problem from hell." Unlike the Cold War, when the United States and the Soviet Union knew that an attack against the other would elicit a retaliatory strike or greater measure, Al Qaeda -- with no return address -- had no such fear of reprisal. Even if the president were prepared to negotiate, Al Qaeda had no phone number to call.

Clearly no decision could be taken without much more information about the threat and those behind it. But how could Rice engage a wider circle of experts and analysts without the White House's suspicions leaking to the press? A CNN flash that the White House had information about an Al Qaeda nuclear weapon in Manhattan would create chaos. New Yorkers would flee the city in terror, and residents of other metropolitan areas would panic. The stock market, which was just then stabilizing from the shock of 9/11, could collapse.

American Hiroshima. Concerned that Al Qaeda could have smuggled a nuclear weapon into Washington as well, the president ordered Vice President Dick Cheney to leave the capital for an "undisclosed location," where he would remain for many weeks to follow. This was standard procedure to ensure "continuity of government" in case of a decapitation strike against the U.S. political leadership. Several hundred federal employees from more than a dozen government agencies joined the vice president at this secret site, the core of an alternative government that would seek to cope in the aftermath of a nuclear explosion that destroyed Washington. The president also immediately dispatched NEST specialists (Nuclear Emergency Support Teams of scientists and engineers) to New York to search for the weapon. But no one in the city was informed of the threat, not even Mayor Rudolph Giuliani.

Six months earlier the CIA's Counterterrorism Center had picked up chatter in Al Qaeda channels about an "American Hiroshima." The CIA knew that Osama bin Laden's fascination with nuclear weapons went back at least to 1992, when he attempted to buy highly enriched uranium from South Africa. Al Qaeda operatives were alleged to have negotiated with Chechen separatists in Russia to buy a nuclear warhead, which the Chechen warlord Shamil Basayev claimed to have acquired from Russian arsenals. The CIA's special task force on Al Qaeda had noted the terrorist group's emphasis on thorough planning, intensive training, and repetition of successful tactics. The task force also highlighted Al Qaeda's strong preference for symbolic targets and spectacular attacks.

Staggering the imagination. As the CIA's analysts examined Dragonfire's report and compared it with other bits of information, they noted that the attack on the World Trade Center in September had set the bar higher for future terrorist spectaculars. Psychologically, a nuclear attack would stagger the world's imagination as dramatically as 9/11 did. Considering where Al Qaeda might detonate such a bomb, they noted that New York was, in the jargon of national security experts, "target rich." Among hundreds of potential targets, what could be more compelling than Times Square, the most famous address in the self-proclaimed capital of the world?

Amid this sea of unknowns, analysts could definitively answer at least one question. They knew what kind of devastation a nuclear explosion would cause. If Al Qaeda was to rent a van to carry the ten-kiloton Russian weapon into the heart of Times Square and detonate it adjacent to the Morgan Stanley headquarters at 1585 Broadway, Times Square would vanish in the twinkling of an eye. The blast would generate temperatures reaching into the tens of millions of degrees Fahrenheit. The resulting fireball and blast wave would destroy instantaneously the theater district, the New York Times building, Grand Central Terminal, and every other structure within a third of a mile of the point of detonation. The ensuing firestorm would engulf Rockefeller Center, Carnegie Hall, the Empire State Building, and Madison Square Garden, leaving a landscape resembling the World Trade Center site. From the United Nations headquarters on the East River and the Lincoln Tunnel under the Hudson River, to the Metropolitan Museum in the eighties and the Flatiron Building in the twenties, structures would remind one of the Alfred P. Murrah Federal Office Building following the Oklahoma City bombing.

On a normal workday, more than half a million people crowd the area within a half-mile radius of Times Square. A noon detonation in midtown Manhattan could kill them all. Hundreds of thousands of others would die from collapsing buildings, fire, and fallout in the ensuing hours. The electromagnetic pulse generated by the blast would fry cell phones, radios, and other electronic communications. Hospitals, doctors, and emergency services would be overwhelmed by the wounded. Firefighters would be battling an uncontrolled ring of fires for many days thereafter.

The threat of nuclear terrorism, moreover, is not limited to New York City. While New York is widely seen as the most likely target, it is clear that Al Qaeda is not only capable of, but also interested in, mounting attacks on other American cities, where people may be less prepared. Imagine the consequences of a ten-kiloton weapon exploding in San Francisco, Houston, Washington, Chicago, Los Angeles, or any other city Americans call home. From the epicenter of the blast to a distance of approximately a third of a mile, every structure and individual would vanish in a vaporous haze. A second circle of destruction, extending three-quarters of a mile from ground zero, would leave buildings looking like the Murrah building in Oklahoma City. A third circle, reaching out one and one-half miles, would be ravaged by fires and radiation.

Uncontrollable blaze. In Washington, a bomb going off at the Smithsonian Institution would destroy everything from the White House to the lawn of the Capitol building; everything from the Supreme Court to the FDR Memorial would be left in rubble; uncontrollable fires would reach all the way out to the Pentagon.

In a cover story in the New York Times Magazine in May 2002, Bill Keller interviewed Eugene Habiger, the retired four-star general who had overseen strategic nuclear weapons until 1998 and had run nuclear antiterror programs for the Department of Energy until 2001. Summarizing his decade of daily experience dealing with threats, Habiger offered a categorical conclusion about nuclear terrorism: "it is not a matter of if; it's a matter of when." "That," Keller noted drily, "may explain why he now lives in San Antonio."

In the end, the Dragonfire report turned out to be a false alarm.

 

Bomb Shelter Planning
Location, Underground Bomb Shelter Plans, Blast/Fallout, Radiation
Build Your Bomb Shelter
First Steps, Materials Required, Costs
Stocking Your Bomb Shelter
Nuclear Emergency Kit (NEK), Emergency Supply Kit, Food, Water, Medical, Etc.
Bomb Shelter FAQ's
Complete List of Essential Nuclear Blast and Underground Bomb Shelter FAQs
Understanding Radiation
Overview of Radioactive Fallout and How to Protect Yourself From It
Nuclear Bomb Facts
Kiloton, Blast Wave, Damage
 

 

 

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Watching for Fallout to Arrive Near the Bomb Shelter
When a nuclear weapon explodes anywhere within several hundred miles, there will be many signs to indicate it. By that time, people should be on the way to, or already at, their bomb shelter.

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Radioactive Fallout Will be the Killer
Like the more than 160 million Americans who live within the danger zones, your greatest concern following a nuclear attack comes from radioactive fallout.  That's the main reason you will need a well-constructed, underground bomb shelter.

Bomb Shelter Writing Supplies
Are writing supplies available, including pens or pencils and printed forms or paper, for keeping records of radiation exposure?

Watching for Fallout to Arrive Near the Bomb Shelter
When a nuclear weapon explodes anywhere within several hundred miles, there will be many signs to indicate it. By that time, people should be on the way to, or already at, their bomb shelter.

Use of the Penalty Table as a Guide for Bomb Shelter Operations
The Penalty Table was developed to provide a simple guide when decisions must be made that will involve some risk.

Group Dosimetry: Keeping Track of Radiation Exposure
The radiation hazard will be worst throughout the first 24 hours after each fallout cloud arrives. It is important to start keeping track of everyone’s radiation exposure right away, as soon as fallout begins to arrive.

Time-Averaging Method
Used to compare the radiation levels between two or more locations in a bomb shelter when the radiation levels are climbing rapidly and when you have only one survey meter.

Space in the Bomb Shelter
Is there going to be enough room for all of the people at this bomb shelter in the locations of best protection?

Restroom and Water Locations in the Bomb Shelter
After fallout has arrived, he or she should check the radiation levels at these locations. Some of them may have to be blocked off until the radiation decays to a safer level.

Radiation Safety Improvement in Bomb Shelters
As you go through your bomb shelter looking for the places that appear to provide the best shielding from gamma radiation, you should also look for ways to improve the shielding.

Organization of the Bomb Shelter Population
Organization of the bomb shelter population into bomb shelter units, each with its own Unit Leader, is necessary not only for good management but also for keeping a radiation exposure record for each person in the bomb shelter.

Materials for Shielding the Bomb Shelter
You may have improved the radiation safety of the bomb shelter to the best of your judgment and capability, as discussed earlier. But after fallout arrives, you may find with the use of your survey meter that gamma radiation is shining through at some unexpected location.

Light Sources in the Bomb Shelter
Electricity may fail in many locations due to a wide-scale nuclear attack. Most of the bomb shelters with the highest FPF’s will also have the least daylight reaching them. If the power goes out, these bomb shelters may be pitch black.

Informing the People in the Bomb Shelter about Radiation Exposure
Even if people are frightened, it is better not to hold back information. The policy of “what they don’t know won’t hurt them” has never worked with the American public.

Getting and Checking the Bomb Shelter Instruments
If you are selected to be an RM after you arrive at the bomb shelter, you may have to find out where the radiation instruments are, and you may have to make a special trip to get them. Instructions on how to use the instruments may be given at the place where they are issued.

Gamma Shielding by using People in the Bomb Shelter
The shielding effect of human bodies can be used to provide extra protection. This protection would be of particular benefit to those people with the greatest sensitivity to radiation, namely, children and pregnant women.

Forecasting Radiation Exposure
When the survey meter readings level off and then continue to decrease, the arrival of fallout from that particular cloud at your location has almost ended. If no more fallout clouds arrive, the radiation levels will continue to decrease rapidly.

Finding the Places with the Lowest Radiation Levels in the Bomb Shelter
Use the survey meter to find the places that have the lowest radiation levels. The people in the bomb shelter should be gathered at the locations that are estimated to have the lowest radiation levels.

Finding and Covering up Leaks in Bomb Shelter Gamma Shielding
After the safest locations have been found in the bomb shelter and the people have moved there (if they weren’t there already), use the survey meter to make detailed measurements of the radiation levels in and around the area where the people are located.

Dosimeter Locations: Where to Place Dosimeters
In some bomb shelters where the FPF is high and about the same everywhere, as in deep underground bomb shelters, caves, and mines, only a few dosimeters need to be mounted or hung where people will be located, to get an idea of what total exposures they are getting, if any.

Decontamination of People Caught in Radioactive Fallout
Fallout arriving within a few hours after a nuclear explosion is highly radioactive. If it collects on the skin in large enough quantities it can cause beta burns

Checking Radiation Levels Outside the Bomb Shelter Area
Sometime no later than 24 - 30 hours after fallout has begun to come down, you (the RM) should take the survey meter and check the radiation levels in rooms next to the bomb shelter area and on the way to the outside.

Checking Out the Bomb Shelter
Some bomb shelters may have many rooms, some of them on different levels, and others may have just one large room. The problems of providing the best radiation safety will be a little different in each bomb shelter.

Best Bomb Shelter Protection
Which locations within the bomb shelter appear to offer the best protection against fallout?  Sketch a bomb shelter floor plan and mark these locations.

Bomb Shelter Openings and Ventilation
Are there openings to be baffled or covered to reduce the amount of radiation coming through them? Will these changes allow enough air to flow through to keep people from getting too hot when they are crowded?

Bomb Shelter Location
The location you choose for your bomb shelter should be one which gives you the greatest protection possible.  Just placing an underground bomb shelter in your back yard is not enough.

Bomb Shelter Design
What should your underground bomb shelter look like?  What materials should it consist of?  How should it be designed?  These are all important considerations when planning the construction of an underground bomb shelter.

Blast and Fallout Concerns
The blast wind produced by a nuclear bomb will reach 2,000 mph within the first half mile from ground zero, drop to about 1,000 mph at 2 miles, and will still be at hurricane force (200 mph) several miles out.

Get an Underground Bomb Shelter, Hop in, Now What?
You are going to need a complete underground bomb shelter plan, and you want to make sure such a plan has been scrutinized thoroughly.

Before Fallout Arrives
It may not be possible to do all these tasks before fallout arrives at the bomb shelter or fallout shelter, and in that case, those tasks that can be done inside the bomb shelter can be done later while fallout is arriving.

Types of Nuclear Explosions
The immediate phenomena associated with a nuclear explosion, as well as the effects of shock and blast and of thermal and nuclear radiations, vary with the location of the point of burst in relation to the surface of the earth. For descriptive purposes five types of burst are distinguished, although many variations and intermediate situations can arise in practice.

Sources of Radiation
Blast and thermal effects occur to some extent in all types of explosions, whether conventional or nuclear. The release of ionizing radiation, however, is a phenomenon unique to nuclear explosions and is an additional casualty producing mechanism superimposed on blast and thermal effects.

Time Scale of a Fission Explosion
An interesting insight into the rate at which the energy is released in a fission explosion can be obtained by treating the fission chain as a series of “generations.” Suppose that a certain number of neutrons are present initially and that these are captured by fissionable nuclei; then, in the fission process other neutrons are released.

Thermonuclear Fusion Reactions
From experiments made in laboratories with charged-particle accelerators, it was concluded that the fusion of isotopes of hydrogen was possible.

Thermal Radiation
The observed phenomena associated with a nuclear explosion and the effects on people and materials are largely determined by the thermal radiation and its interaction with the surroundings. It is desirable, therefore, to consider the nature of these radiations somewhat further.

Fission Products
Many different initial fission product nuclei, i.e., fission fragments, are formed when uranium or plutonium nuclei capture neutrons and suffer fission. There are 40 or so different ways in which the nuclei can split up when fission occurs; hence about 80 different fragments are produced.

Fission Energy
The significant point about the fission of a uranium (or plutonium) nucleus by means of a neutron, in addition to the release of a large quantity of energy, is that the process is accompanied by the instantaneous emission of two or more neutrons.

Critical Mass for a Fission Chain
Although two to three neutrons are produced in the fission reaction for every nucleus that undergoes fission, not all of these neutrons are available for causing further fissions. Some of the fission neutrons are lost by escape, whereas others are lost in various nonfission reactions.

Attainment of Critical Mass in a Nuclear Explosion
In order to produce an explosion, the material must then be made “supercritical,” i.e., larger than the critical mass, in a time so short as to preclude a sub-explosive change in the configuration, such as by melting.

Residual Radiation
The residual radiation hazard from a nuclear explosion is in the form of radioactive fallout and neutron-induced activity.

Radiation and Fallout
Radioactive fallout will fall in a manner similar to that following a volcanic eruption.  It will be flaky in appearance and its size may reduce to dust particles or smaller.  Expect it to be thicker near the detonation site and thinner as it travels down wind.

Initial Radiation
About 5% of the energy released in a nuclear air burst is transmitted in the form of initial neutron and gamma radiation. The neutrons result almost exclusively from the energy producing fission and fusion reactions, while the initial gamma radiation includes that arising from these reactions as well as that resulting from the decay of short-lived fission products.

General Principles of Nuclear Explosions
An explosion, in general, results from the very rapid release of a large amount of energy within a limited space. This is true for a conventional “high explosive,” such as TNT, as well as for a nuclear (or atomic) explosion, although the energy is produced in quite different ways.

Worldwide and Local Fallout
The radiobiological hazard of worldwide fallout is essentially a long-term one due to the potential accumulation of long-lived radioisotopes, such as strontium-90 and cesium-137, in the body as a result of ingestion of foods which had incorporated these radioactive materials.

Energy Yield of Nuclear Explosions
The “yield” of a nuclear weapon is a measure of the amount of explosive energy it can produce. It is the usual practice to state the yield in terms of the quantity of TNT that would generate the same amount of energy when it explodes.

Distribution of Energy in Nuclear Explosions
The basic reason for this difference is that, weight for weight, the energy produced by a nuclear explosive is millions of times as great as that produced by a chemical explosive.

Atomic Structure and Isotopes
A less familiar element, which has attained prominence in recent years because of its use as a source of nuclear energy, is uranium, normally a solid metal.

Thermal Radiation
The observed phenomena associated with a nuclear explosion and the effects on people and materials are largely determined by the thermal radiation and its interaction with the surroundings. It is desirable, therefore, to consider the nature of these radiations somewhat further. Thermal radiations belong in the broad category of what are known as “electromagnetic radiations.”

Understanding Radiation
What is radiation, you ask? 
Radiation in physics is the process of emitting energy in the form of waves or particles. Various types of radiation may be distinguished, depending on the properties of the emitted energy/matter, the type of the emission source, properties and purposes of the emission, etc.

Bomb Shelter Entranceway Problems
One problem that could develop is that the bomb shelter entrance could be blocked by people who have stopped just inside the entrance.

Minimizing Exposure to Radiation
It's people like you and me (hopefully) that will survive the initial blast.  Our greatest concern is radioactive fallout.  Fallout will kill as many, if not much more than the blast itself.  And how long you have before fallout arrives depends on three things.

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