[[Smallpox]] may have been used as a biological weapon in North America in the 18th century.<ref>https://www.bbc.co.uk/history/worldwars/coldwar/pox_weapon_01.shtml</ref> During [[World War II]] Britain conducted experiments with [[anthrax]] as a biological weapon on Gruinard Island, [[Scotland]].<ref>https://www.youtube.com/watch?v=hsOJRxs_dTI</ref> [[Anthrax]] was used in a [[Terrorism|terrorist]] attack on American citizens in 2001.
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[[Smallpox]] may have been used as a biological weapon in North America in the 18th century.<ref>https://www.bbc.co.uk/history/worldwars/coldwar/pox_weapon_01.shtml</ref> During [[World War II]] Britain conducted experiments with [[anthrax]] as a biological weapon on Gruinard Island, [[Scotland]].<ref>https://www.youtube.com/watch?v=hsOJRxs_dTI</ref>