In terms of operational leadership for critical infrastructure, which agency is primarily involved?

The correct choice is CISA, which stands for the Cybersecurity and Infrastructure Security Agency. This agency is primarily tasked with enhancing the security and resilience of the nation's critical infrastructure. CISA plays a critical role in operational leadership by implementing policies, providing guidance, and coordinating resources across federal, state, and local agencies to protect essential services such as water supply, transportation systems, and energy infrastructure.

CISA's functions include monitoring vulnerabilities, facilitating collaborations between governmental and private sectors, and developing nationwide efforts to prepare for and respond to threats. This focus is crucial for ensuring that critical infrastructure can withstand and rapidly recover from various hazards, including cyber threats and physical attacks.

While other agencies, such as DHS, also play important roles in broader security and homeland defense initiatives, CISA's specific focus on critical infrastructure makes it the primary agency for operational leadership in this area. The Department of Commerce and the Environmental Protection Agency do not have the same direct responsibilities regarding the operational leadership of critical infrastructure as CISA does.