The report, which noted that the U.S.is aware that North Korea has been seeking "nuclear, chemical and biological weapons", said that Kim Jong-un's regime wants to know if anthrax can survive the heat of an inter-continental missile trip.
According to the Centers for Disease Control and Prevention, the deadly infection-causing bacteria would be one of the biological agents most likely to be used in case of a bioterrorist attack.More news: This Chinese startup's electric SUV is a lot cheaper than Tesla's
A week ago, the Washington Post reported that USA military officials suspected North Korea of preparing biological weapons as part of their arsenal.
Several individuals including North Korean defectors as well as assessments by the USA and South Korean governments estimated the North began acquiring biological weapons as early as the 1960s, under the orders of Kim Il Sung.
The North Korean ICBM test that attracted the most attention in November was dubbed Hwasong 15 ("Mars"), and the missile flew as high as 2,800 miles and traveled for 50 minutes, according to ABC News. The 56-page unclassified strategy document states that Pyongyang is "pursuing chemical and biological weapons which could also be delivered by missile". When an intercontinental ballistic missile reenters the earth's atmosphere, it could reach about 7000 degrees of heat.