Bioterrorism agents are pathogenic organisms or biological toxins used for terrorist purposes to cause death or illness in humans, animals, or plants. These drugs are usually found in nature, but can be modified to increase pathogenicity, make them resistant to common antibiotics and vaccines, and improve their ability to spread to the environment. I can. Terrorists may see biological weapons as an attractive alternative to traditional weapons. This is because biological weapons are relatively low cost, relatively accessible, and relatively easy to manufacture, deliver, and detect. Their use, or even threatened use, can cause widespread social turmoil. The concept of using biological weapons in war is not new. Even as early as the 6th century BC, there are many examples throughout recorded history. When the Assyrians reportedly poisoned an enemy well with rye ergot. Blankets used by smallpox victims were given to Native Americans by the British in the 1700s during the French and Indian War, and are believed to have led to a decline in the native population . The US Government has responded by expanding resources and efforts in biodefense research. Much of this work is overseen by the National Institute of Health Sciences and the National Institute of Allergic Infectious Diseases, a component of the Centers for Disease Control and Prevention, along with other agencies, including the US Department of Homeland Security. As the technology for genetically modifying organisms has advanced and become more accessible, it has become easier and cheaper to modify the genetic makeup of viruses and bacteria