According to the U.S. Department of Homeland Security, an Active Shooter is an individual actively engaged in killing or attempting to kill people in a confined and populated area; in most cases, active shooters use firearms(s) and there is no pattern or method to their selection of victims. Active shooter situations are unpredictable and evolve quickly. Typically, the immediate deployment of law enforcement is required to stop the shooting and mitigate harm to victims. Because active shooter situations are often over within 10 to 15 minutes, before law enforcement arrives on the scene, individuals must be prepared both mentally and physically to deal with an active shooter situation.
(U//FOUO) This Strategic Sector Assessment is one in a series that provides an overall assessment of the potential terrorist threats to critical infrastructure and key resources, and provides decision makers with the broad, analytically-based threat information necessary to inform investment priorities and program design.
Information from several recent planned or thwarted terrorist plots shows the importance of the use of insiders to gain access to targets and collect preoperational information. Al-Qa‘ida planner Dhiren Barot, whom UK authorities arrested in 2006, had tasked a member of his group to secure employment at a hotel in the United Kingdom to learn how to deactivate fire and security systems.
This assessment examines the potential threat to homeland security from cyber attacks conducted by leftwing extremists, a threat that DHS/I&A believes likely will grow over the next decade. It focuses on the more prominent leftwing groups within the animal rights, environmental, and anarchist extremist movements that promote or have conducted criminal or terrorist activities (see Appendix). This assessment is intended to alert DHS policymakers, state and local officials, and intelligence analysts monitoring the subject so they can better focus their collection requirements and analysis.
Rightwing extremist paranoia of foreign regimes could escalate or be magnified in the event of an economic crisis or military confrontation, harkening back to the “New World Order” conspiracy theories of the 1990s. The dissolution of Communist countries in Eastern Europe and the end of the Soviet Union in the 1990s led some rightwing extremists to believe that a “New World Order” would bring about a world government that would usurp the sovereignty of the United States and its Constitution, thus infringing upon their liberty. The dynamics in 2009 are somewhat similar, as other countries, including China, India, and Russia, as well as some smaller, oil-producing states, are experiencing a rise in economic power and influence.
This product is one in a series of reference aids designed to provide operational and intelligence advice and assistance to other elements of DHS, as well as state, local, and regional fusions centers. DHS/I&A intends this background information to assist federal, state, local, and tribal homeland security and law enforcement officials in conducting analytic activities. This product provides definitions for key terms and phrases that often appear in DHS analysis that addresses the nature and scope of the threat that domestic, non-Islamic extremism poses to the United States. Definitions were derived from a variety of open source materials and unclassified information, then further developed during facilitated workshops with DHS intelligence analysts knowledgeable about domestic, non-Islamic extremism in the United States.