CHEMICAL BIOLOGICAL RADIOLOGICAL NUCLEAR HIGH-YIELD EXPLOSIVES
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Chemical Biological Radiological Nuclear High-Yield Explosives The most likely device that a terrorist can employ is the conventional explosive device. These types of explosives have been around for centuries since the modification of the Chinese explosive gunpowder for use in weaponry. The manufactured as well as improvised explosive devices are the easiest weapons to get and use. This may be because, instructions regarding their assembly and deployment is widely available both in print and the internet. The information is also found through the transfer of knowledge in criminal networks (Bullock et al., 2012).
When these extensively available weapons are used skillfully, they can inflict large amounts of destruction to both humans and properties. An example of such an attack is the September 2011 incident in the U.S. The use of conventional explosives can be the easiest to use in the United States since they rely on low technology, and are easy to transport. Most importantly, it is not easy to detect these devices as most of the materials are untraceable due to their accessibility (Bullock et al., 2012). The other type of explosive is the use of biological agents. These are live organisms or toxic byproducts from living organisms used in order to cause injury, illness or death of plants, humans or livestock. Even though there was awareness regarding the possibility of using viruses, toxins or bacteria as weapons, an unknown terrorist group once used such to attack people. The group delivered a series of attacks through the use of anthrax spores via the United States mail system. During the 14th century, Mongols used corpses infected with a plague to spread diseases among its enemies. The devastating effect of bioweapons lies in the fact that people are normally not aware that they have been exposed to such an attack (Robert, 2006).

References
Bullock, J. A., Haddow, G. D., & Coppola, D. P. (2012). Introduction to homeland security. Boston, MA: Butterworth-Heinemann.
Robert, H.J. (2006). Introduction to CBRNE Terrorism. An Awareness Primer and Preparedness Guide for Emergency Responders. The Disaster Preparedness and Emergency Response Association: Longmont