DHS

DHS
DHS, as noted below. · Public domain · source
Agency name	Department of Homeland Security
Formed	2002
Preceding1	Immigration and Naturalization Service
Preceding2	Customs Service (United States)
Preceding3	U.S. Coast Guard
Preceding4	Federal Emergency Management Agency
Jurisdiction	United States
Headquarters	Washington, D.C.
Employees	240,000 (approx.)
Budget	US$60+ billion (approx.)
Chief1 name	Secretary
Chief1 position	Secretary of United States

Contents

History
Organization and structure
Missions and responsibilities
Programs and components
Criticism and controversies
Budget and funding
See also

DHS is a United States federal cabinet-level executive department created in response to the September 11 attacks to coordinate national efforts for threat prevention, border security, emergency response, and infrastructure protection. It consolidated functions from multiple legacy agencies such as Federal Emergency Management Agency, Customs Service (United States), and Immigration and Naturalization Service to centralize authorities for counterterrorism, aviation security, and disaster resiliency. The department interacts with domestic agencies like Federal Bureau of Investigation and Centers for Disease Control and Prevention and international partners including Interpol and North Atlantic Treaty Organization on transnational risks.

History

Established by the Homeland Security Act of 2002, the department emerged from post-September 11 attacks organizational reforms recommended by the 9/11 Commission Report and legislative initiatives led in part by members of the United States Congress. Early incorporations included Federal Emergency Management Agency, U.S. Customs Service, and Immigration and Naturalization Service, alongside the transfer of functions from the Department of Justice and Department of Transportation. Subsequent events such as Hurricane Katrina, the 2005 Atlantic hurricane season, and evolving cyber incidents prompted reorganizations, policy shifts, and the creation of directorates addressing cybersecurity and critical infrastructure protection. Leadership changes have included secretaries confirmed by the United States Senate and oversight by congressional committees like the United States House Committee on Homeland Security.

Organization and structure

The department is led by a Secretary confirmed by the United States Senate and includes multiple component agencies with statutory authorities from laws such as the Homeland Security Act of 2002 and the Patriot Act. Major components are statutory operational elements like U.S. Customs and Border Protection, U.S. Immigration and Customs Enforcement, United States Coast Guard (during peacetime transferred from Department of Homeland Security), United States Secret Service, and Transportation Security Administration. Staff offices include policy, intelligence, and science directorates interacting with entities such as the Office of Management and Budget and Government Accountability Office for budgetary and audit oversight. Regional coordination occurs with state executives like Governor of Louisiana during disaster responses and with metropolitan agencies including the New York City Office of Emergency Management.

Missions and responsibilities

Core missions encompass counterterrorism and aviation security with operational ties to Federal Bureau of Investigation and Central Intelligence Agency for threat information sharing; border security through U.S. Customs and Border Protection and U.S. Immigration and Customs Enforcement; disaster preparedness and response via Federal Emergency Management Agency; cybersecurity collaboration with agencies like National Security Agency and Department of Defense; and protection of critical infrastructure sectors listed by Department of Homeland Security policy. The department also administers programs affecting immigration law enforcement, public health emergency coordination with Centers for Disease Control and Prevention, and protective missions for leaders and visiting dignitaries through the United States Secret Service.

Programs and components

Operational components include TSA PreCheck-related screening programs under Transportation Security Administration, trade facilitation and enforcement activities tied to U.S. Customs and Border Protection, removal and detention programs under U.S. Immigration and Customs Enforcement, maritime safety and search-and-rescue conducted by the United States Coast Guard, disaster grants and recovery programs managed by Federal Emergency Management Agency, and protective intelligence and investigations by the United States Secret Service. Technology and research initiatives collaborate with institutions such as National Institute of Standards and Technology and Lawrence Livermore National Laboratory for biometrics, detection systems, and resilience testing. Grants and preparedness initiatives distribute funds to state and local recipients like California Governor's Office of Emergency Services and New York City Office of Emergency Management.

Criticism and controversies

The department has faced scrutiny from American Civil Liberties Union, Human Rights Watch, and congressional oversight bodies over policies regarding immigration enforcement, detention practices, surveillance programs, and the militarization of border responses. High-profile incidents such as responses after Hurricane Katrina and debate over family separation policies prompted investigations by the United States House Homeland Security Committee and public litigation in federal courts including the United States Court of Appeals for the Ninth Circuit. Controversies have also involved procurement disputes with defense contractors like Boeing and Lockheed Martin, privacy concerns raised by Electronic Frontier Foundation, and interoperability challenges highlighted by the Government Accountability Office.

Budget and funding

Funding derives from annual appropriations enacted by the United States Congress and is subject to budgetary review by the Office of Management and Budget and audit by the Government Accountability Office. Major budget lines support Transportation Security Administration operations, Federal Emergency Management Agency disaster relief funds, maritime and border operations for U.S. Coast Guard and U.S. Customs and Border Protection, and IT modernization initiatives often coordinated with Department of Defense contracts. Supplemental appropriations have been provided after major disasters such as Hurricane Sandy and for emergent needs related to pandemics like the COVID-19 pandemic.