Answer: theft of explosives
Step-by-step explanation:
Explosives are usually the weapon of choice for terrorists. A research conducted by the National Consortium for the Study of Terrorism and Responses to Terrorism, explosions were used in 51.53% of the terrorist acts registered in the United States between 1970 and 2011.
In order to acquire supplies, terrorists might purchase or stealing explosives, weapons, or ammo, as well as fertilizer or dangerous substances.