What is the likelihood of terrorists using CBRN weapons

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Rod Thornton        M3113        Claire Meakin

Analyse the likelihood of the use of CBRN weapons by terrorists

September 11th 2001 was a day that changed history.  Terrorists ploughed airplanes into New York’s World Trade Centre and the Pentagon killing nearly 3,000 people.  Before this incident there was a general acceptance of Brian Jenkins’s well-known formulation that, “terrorists want a lot of people watching and a lot of people listening but not a lot of people dead.” (Jenkins 1975: 6)  Nevertheless, from seeing the extent of how far terrorist will go to instil fear and cause destruction, there has been a dramatic increase in concern over the use of weapons of mass destruction by terrorists and rogue states, and this essay will seek to analyse whether this concern is valid or not, and whether people genuinely should fear a future rife with terrorists using CBRN weapons.  

The essay shall be divided into a number of sections: the first shall define what is meant by CBRN weapons and will acknowledge the pros and cons of terrorists using these weapons. The second section shall provide the pessimistic argument that terrorists are likely to use CBRN weapons, and the third section shall provide the more optimistic counter argument to this.  The fourth section shall talk about the concept of “new terrorism” and how this cannot be used as concrete evidence that terrorists are likely to use CBRN weapons, and the final section shall discuss the limitations to the argument, before finally concluding.  

It was not until the Second World War that what we today call weapons of mass destruction, or CBRN weapons, were systematically used.  The Nazis, for example, used chemical weapons against Jews, gypsies and Soviet prisoners, whilst the Japanese used biological weapons against the Chinese and the Americans used nuclear weapons against the Japanese (Shmid 2006: 109).  The term CBRN is an acronym for the various modes of weapons of mass destruction available: chemical, biological, radiological and nuclear.  Each weapon has both benefits and fallbacks and thus the likelihood of terrorists using them varies from weapon to weapon.

The last serious attack using a sophisticated chemical weapon was conducted by Aum Shinrikyo in the Tokyo subway system in 1995 using Sarin gas, leaving only twelve people killed, although many more were injured (Weinberg 2008: 11).  Although these weapons have many setbacks, namely the difficulty in dispersing the chemicals, they demonstrated their lethality in World War One when they produced around one million casualties of which more than 90,000 were fatalities (Shmid 2006: 110).  Weinberg talks about chemical weapons, saying, “the obstacles have to do with the techniques for dispersing the poisonous chemicals, bacteria, and toxins rather than their cultivation or manufacture.” (Weinberg 2008: 165).  In addition to this, preventing chemical terrorism is particularly challenging as terrorists can, with relative ease, use commercial industrial toxins, pesticides, and other commonly available chemical agents as low-cost alternatives to conventional attacks.  This is likely to make them a potentially popular choice for terrorists.

Biological weapons “combine maximum destructiveness and easy availability” (Betts 1998: 32).  Once biological agents have been readied for attacks, the final stage is alarmingly straight forward.  In a US Congress Office of Technology Assessment it emerged that, under the right conditions, an aerial release of 100 kilograms of Anthrax spores over Washington DC could kill between one and three million people (Office of Technology Assessment 1993: 53)  Biotechnology has advanced dramatically over the course of the last half decade, particularly due to the discovery of the structure of DNA in 1953 and almost twenty years later, the ability to manipulate genomes of organisms to achieve specific goals (Chyber & Greninger 2004: 145)  This includes an increase in the chance of ethnic targeting whereby only another ‘race’ is affected by a biological weapons (Shmid 2006: 121).  This could mean that the risk of infecting one’s own group members, which is a severe risk with biological weapons, would be avoided, and could therefore increase the likelihood of terrorists using such weapons.  

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Some terrorists seek to acquire radiological materials for use in a radiological dispersal device, also known as a “dirty bomb”.  Many people question why such weapons are used in the same category as chemical, biological and nuclear weapons, for:

“even the most dangerous radiological materials (cobalt-60 or cesium-137) would likely be limited to dozens of deaths and hundreds of injured if a sufficient amount of material were acquired and dispersed.” (US Department of State Website)

Nevertheless, terrorists could potentially chose to use radiological material as a weapon, particularly over nuclear weapons, as it is significantly easier to procure. ...

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