What's the difference between FBI, CIA and NSA?

(1) The FBI is one of the most important intelligence agencies in the United States.

② Central Intelligence Agency, headquartered in Langley, Virginia, USA. Together with the Soviet National Security Council (KGB), British MI 6 and Israel Mossad, it is called "the four major intelligence agencies in the world".

(3) National Security Agency: It is the largest intelligence department in American government agencies, and is responsible for collecting and analyzing foreign and domestic communication materials. It belongs to the U.S. Department of Defense, also known as the National Secret Service.

2. Different institutions.

(1) The US Federal Bureau of Investigation is attached to the US Department of Justice.

(2) The director of the CIA is the intelligence adviser of the National Security Council, which has established the position of the CIA in the American intelligence community and is the intelligence agency closest to the national security decision-making process.

(3) The National Security Agency (NSA) is the largest intelligence agency in the U.S. government, which is responsible for collecting and analyzing foreign and domestic communication materials, and belongs to the U.S. Department of Defense.

3. Different tasks

(1) The task of the US Federal Bureau of Investigation is to investigate criminals who oppose federal laws, support laws and 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.

Five aspects that affect society enjoy the highest priority: anti-atrocities, drugs/organized crime, foreign anti-espionage activities, violent crimes and white-collar crimes.

(2) US Central Intelligence Agency: 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 CIA is divided into four main parts: intelligence department, management department, operation department and science and technology department. Most information technology personnel are highly educated or experts in certain fields. The organization, personnel, funds and activities of this institution are strictly confidential, and even Congress cannot ask.

(3) National Security Agency: It was separated from the military department at that time according to a secret instruction of President Truman in 1952, which was used to strengthen intelligence communication and was the center of American intelligence agencies.

Extended data:

US National Security Agency Monitoring Event: Snowden Incident

1. According to information leaked by Snowden, China's communication system is also monitored by the United States. NSA used to infiltrate the headquarters computer systems of large technology companies in China and eavesdrop on their high-level information. June 20 13, China Datang, ZTE and other companies found that NSA invaded their Internet routers and accessed thousands of computers.

2. Soon after, China Mobile (735 million users), China Unicom (258 million users) and China Telecom (65.438+72 million users) learned that the NSA had monitored their telephone communication and stolen the SMS data.

3. For a long time, China has often been accused of cyber espionage by the United States, but the United States has publicly declared that it does not collect economic information and acted like a victim. The Snowden incident and its subsequent series of exposures caused Uncle Sam's reputation in the international community to collapse instantly.

References:

Baidu Encyclopedia-FBI

References:

Baidu Encyclopedia-US Central Intelligence Agency

References:

Baidu encyclopedia-national security bureau