The **Homeland Security Committee** primarily refers to the U.S. House Committee on Homeland Security, a standing committee of the House of Representatives established in 2002 following the September 11, 2001 attacks. Its creation marked a critical reorganization aimed at enhancing national security oversight and legislative response to emerging threats[3][6]. The committee’s core mission is to oversee the Department of Homeland Security (DHS) and to legislate on matters related to the security of the United States. This includes drafting, amending, and approving bills concerning border security, counterterrorism, cybersecurity, emergency management, and transportation security. It has the authority to conduct hearings, investigations, and subpoena witnesses to ensure effective DHS operations and to address vulnerabilities[3][4][5]. Historically, the committee evolved from the Senate’s Governmental Affairs Committee, which broadened its scope after the Homeland Security Act of 2002 to include homeland security issues, leading to the formation of the Senate Committee on Homeland Security and Governmental Affairs. The House committee focuses specifically on legislative oversight and policy development related to homeland security, reflecting the post-9/11 shift in U.S. security priorities[1][3]. Key achievements include oversight of critical DHS functions such as immigration enforcement, cybersecurity initiatives, and disaster response coordination. The committee has actively worked on legislation to enhance information sharing, protect critical infrastructure, and improve emergency preparedness. For instance, recent activities highlight concerns over cyber threats amid lapses in information sharing and government shutdown impacts on transportation security[4]. Currently, the committee is organized into multiple subcommittees covering specialized areas including Border Security and Enforcement, Cybersecurity and Infrastructure Protection, Emergency Management and Technology, and Counterterrorism. Its membership includes House representatives with security and technology expertise, ensuring a comprehensive approach to safeguarding the nation[4][5]. Notably, the committee blends legislative authority with investigative powers, enabling it to adapt to evolving threats in technology and national security, making it a central