Sabotage means deliberate damage, with malevolent intent, to a category 1 or category 2 quantity of radioactive material, a device that contains a category 1 or category 2 quantity of radioactive material, or the components of the security system.
Explosion means the sudden release of energy sufficient to cause pressure waves and/or projectiles that may cause structural and/or physical damage to the surrounding of the vehicle."
Landslide means episodic down slope movement of a mass of soil or rock that includes, but is not limited to, rock falls, slumps, mudflows, and earth flows.
Epidemic means a sudden development and rapid spreading of a contagious disease or illness in an area as documented by a recognized public health authority.
Riot means a tumultuous disturbance of the public peace by three or more persons assembled together and acting with a common intent.