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The primary role of sector-specific agencies is to protect critical infrastructure in the United States from terrorist attacks and other threats. These agencies are designated to focus on particular sectors vital to the nation’s economy and security, such as energy, water, transportation, and communications. They coordinate with other federal, state, local, tribal, and territorial authorities to enhance security measures, develop risk assessments, and implement protective strategies.

This targeted approach allows these agencies to tailor their expertise to address the unique vulnerabilities and needs of their respective sectors, ensuring a comprehensive defense against potential threats. By fostering collaboration and information-sharing among stakeholders, these agencies play a crucial role in reinforcing the overall resilience of the nation’s critical infrastructure.