disorders and riots are the poll tax riots in the United Kingdom in 1990; the 1992 Los Angeles riots in which 53 people died; the 2008 Greek riots after a 15-year-old boy was fatally shot by police; and the 2010 Thai political protests in Bangkok during which 91 people died. Such behavior is only hazardous for those directly involved as participants, those controlling the disturbance, or those indirectly involved as passers-by or shopkeepers for example. For the great majority, staying out of the way of the disturbance avoids the hazard. Terrorism The common definition of terrorism is the use or threatened use of violence for the purpose of creating fear in order to achieve a political, religious, or ideological goal. Targets of terrorist acts can be anyone, including private citizens, government officials, military personnel, law enforcement officers, firefighters, or people serving in the interests of governments. Definitions of terrorism may also vary geographically. In Australia, the Security Legislation Amendment (Terrorism) Act 2002, defines terrorism as "an action to advance a political, religious or ideological cause and with the intention of coercing the government or intimidating the public", while the United States Department of State operationally describes it as "premeditated, motivated violence perpetrated against non-combatant targets by sub national groups or clandestine agents, usually intended to influence an audience". War War is a conflict between relatively large groups of people, which involves physical force inflicted by the use of weapons. Warfare has destroyed entire cultures, countries, economies and inflicted great suffering on humanity. Other terms for war can include armed conflict, hostilities, and police action. Acts of war are normally excluded from insurance contracts and sometimes from disaster planning. Industrial hazards Industrial accidents resulting in releases of hazardous materials usually occur in a commercial context, such as mining accidents. They often have an environmental impact, but also can be hazardous for people living in proximity. The Bhopal disaster saw the release of methyl isocyanate into the neighbouring environment seriously affecting large numbers of people. It is probably the world's worst industrial accident to date. Engineering hazards Engineering hazards occur when structures used by people fail or the materials used in their construction prove to be hazardous. This history of construction has many examples of hazards associated with structures including bridge failures such as the Tay Bridge disaster caused by under-design, the Silver Bridge collapse caused by corrosion attack, or the original