What Is the Department of Homeland Security?


Quick Answer

The Department of Homeland Security is a government agency responsible for enhancing U.S. security, preventing terrorism, managing U.S. borders, securing cyberspace, providing support in the wake of disaster and administering immigration laws. The Department of Homeland Security's mission revolves around building a resilient nation, according to DHS.gov.

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Full Answer

The government agency works with the public and private sector and law enforcement agencies to equip emergency responders with the tools and resources to protect U.S. citizens, according to DHS.gov. In the wake of disasters, the department trains and guides emergency responders to provide security forces.

The Department of Homeland Security also monitors and enforces laws to ensure cyber security, according to DHS.gov. The agency distributes warnings leaked on the Internet and analyzes threats to reduce the risk for U.S. citizens.

Border security is also a primary responsibility of the Department of Homeland Security. The agency secures air, land and sea points of entry in the United States, and it monitors travel and lawful trade to eliminate any transnational criminal and terrorist threats and advances, according to the mission statement of the department available through DHS.gov. An additional responsibility of the department involves managing and enforcing immigration laws at the nation's borders and within the United States.

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