Federal Bureau of Investigation, CIA, Department of Homeland Security (Department of Homeland Security? ) Is there any arrangement between them, which department they are assigned to, and their main r

Federal Bureau of Investigation, CIA, Department of Homeland Security (Department of Homeland Security? ) Is there any arrangement between them, which department they are assigned to, and their main responsibilities? The United States Federal Bureau of Investigation (FBI) is attached to the United States Department of Justice. "FBI" is not only the abbreviation of the FBI, but also represents the creed that the FBI adheres to-loyalty, courage and integrity, symbolizing the federal police. The task of the Federal Bureau of Investigation is to investigate violations of the federal crime law, support the law, protect the United States, investigate intelligence and terrorist activities from foreign countries, and enforce them in leadership and law. Provide assistance to federal, state, local and international institutions, perform their duties, respond to public needs, and be loyal to the US Constitution.

The CIA is one of the three major intelligence agencies in the United States. Its main task is to openly and secretly collect and analyze information about foreign governments, companies, terrorist organizations, individuals, politics, culture, science and technology, coordinate the activities of other domestic intelligence agencies, and report this information to the work of various departments of the US government. He is also responsible for maintaining a large number of military equipment, which was used to overthrow foreign governments during the Cold War, such as the Soviet Union, Abens of Guatemala, Allende of Chile and other opponents who threatened the interests of the United States. The headquarters of the Central Intelligence Agency is located in Langley, Virginia. The status and role of the US Central Intelligence Agency is equivalent to that of British MI 6, KGB of the former Soviet Union and Mossad of Israel. It is the only independent intelligence department in the American intelligence system.

The Department of Homeland Security (DHS) is a department of the U.S. government, which is responsible for domestic security and preventing terrorist activities. It is a newly established federal department after the 9 1 1 incident in the United States. The main responsibility of the Department of Homeland Security is to defend homeland security and related affairs, so that the United States can respond to the threat of terrorist attacks more harmoniously and effectively. The department is mainly responsible for four aspects of work: First, strengthen air and land traffic safety and prevent terrorists from entering the United States; Second, improve the ability of the United States to deal with emergencies; Third, prevent the United States from being attacked by chemical, biological and nuclear terrorism; Fourth, defend the key infrastructure of the United States and summarize and analyze the information from the Federal Bureau of Investigation, the Central Intelligence Agency and other departments. The U.S. Department of Homeland Security is a merger of 22 federal agencies, including the Coast Guard, the Immigration and Naturalization Service and the General Administration of Customs, with more than 6,543,800 employees and an annual budget of nearly $40 billion.