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Homeland security is an American umbrella term for "the concerted national effort to ensure a homeland that is safe, secure, and resilient against terrorism and other hazards where American interests, aspirations, and ways of life can thrive to the national effort to prevent terrorist attacks within the United States, reduce the vulnerability of the U.S. to terrorism, and minimize the damage from attacks that do occur." 〔(Homeland Security: Analysis and Congressional Considerations'', 08 January 2013, pp.8,. ) 〕 Homeland security is not constrained to terrorist incidents. Terrorism is one of many threats that endanger society. Within the U.S., an all-hazards approach exists regarding homeland security endeavors. In this sense, homeland security encompasses both natural disasters and man-made events. Thus, the domain of homeland security must accommodate a plethora of situations and scenarios, ranging from natural disasters (e.g., Hurricane Katrina) to acts of terrorism (e.g., Boston Marathon bombing). The term came about following a reorganization of many U.S. government agencies in 2003 to form the United States Department of Homeland Security after the September 11 attacks, and may be used to refer to the actions of that department, the United States Senate Committee on Homeland Security and Governmental Affairs, or the United States House of Representatives Committee on Homeland Security. Homeland defense (HD) is the protection of U.S. territory, sovereignty, domestic population, and critical infrastructure against external threats and aggression. ==In the United States== In the United States, the concept of "Homeland Security" extends and recombines responsibilities of government agencies and entities. According to Homeland security research, the U.S. federal Homeland Security and Homeland Defense includes 187 federal agencies and departments,〔(HomeLandSecurityResearch.com: ''Homeland Security and Defense Structure'' )〕 including the United States National Guard, the Federal Emergency Management Agency, the United States Coast Guard, U.S. Customs and Border Protection, U.S. Immigration and Customs Enforcement, United States Citizenship and Immigration Services, the United States Secret Service, the Transportation Security Administration, the 14 agencies that constitute the U.S. intelligence community and Civil Air Patrol. Although many businesses now operate in the area of homeland security, it is overwhelmingly a government function. The George W. Bush administration consolidated many of these activities under the United States Department of Homeland Security (DHS), a new cabinet department established as a result of the Homeland Security Act of 2002. However, much of the nation's homeland security activity remains outside of DHS; for example, the FBI and CIA are not part of the Department, and other executive departments such as the Department of Defense and Department of Health and Human Services play a significant role in certain aspects of homeland security. Homeland security is coordinated at the White House by the Homeland Security Council, currently headed by John Brennan. Homeland security is officially defined by the National Strategy for Homeland Security as "a concerted national effort to prevent terrorist attacks within the United States, reduce America's vulnerability to terrorism, and minimize the damage and recover from attacks that do occur".〔(The National Strategy For Homeland Security )〕 Because the U.S. Department of Homeland Security includes the Federal Emergency Management Agency, it also has responsibility for preparedness, response, and recovery to natural disasters. According to the U.S. Office of Management and Budget〔U.S. Office of Management and Budget. Analytical Perspectives, Budget of the United States Government, Fiscal Year 2011. ISBN 978-0-16-084798-1〕 and Homeland Security Research Corporation, DHS Homeland security funding constitutes only 20-21% of the consolidated U.S. Homeland Security - Homeland Defense funding,〔Homeland Security Research Corporation. U.S. HLS-HLD Markets – 2011-2014〕 while approximately 40% of the DHS budget funds civil, non-security activities, such as the U.S. coast guard search and rescue operations and customs functions. The U.S. Homeland Security is the world's largest Homeland counter terror organization, having 40% of the global FY 2010 homeland security funding.〔Homeland Security Research Corporation. Global Homeland Security, Homeland Defense & Intelligence Markets Outlook - 2009-2018〕 The term became prominent in the United States following the September 11, 2001 attacks; it had been used only in limited policy circles prior to these attacks. The phrase "security of the American homeland" appears in the 1998 report ''(Catastrophic Terrorism: Elements of a National Policy )'' by Ashton B. Carter, John M. Deutch, and Philip D. Zelikow. Homeland security is also usually used to connote the civilian aspect of this effort; "homeland defense" refers to its military component, led chiefly by the U.S. Northern Command headquartered in Colorado Springs, Colorado. The scope of homeland security includes: * Emergency preparedness and response (for both terrorism and natural disasters), including volunteer medical, police, emergency management, and fire personnel; * Domestic and International intelligence activities, largely today within the FBI; * Critical infrastructure and perimeter protection; * Investigation of people making and distributing child pornography; * Border security, including both land, maritime and country borders; * Transportation security, including aviation and maritime transportation; * Biodefense; * Detection of radioactive and radiological materials; * Research on next-generation security technologies. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「homeland security」の詳細全文を読む スポンサード リンク
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