Which agency is the primary agency for crisis management when it comes to responding to terrorist incidents within the US and its maritime areas?

The primary agency for crisis management in responding to terrorist incidents within the U.S. and its maritime areas is the Department of Homeland Security (DHS), specifically through its Federal Emergency Management Agency (FEMA) and the Coast Guard. The DHS coordinates federal efforts to prevent, prepare for, respond to, and recover from terrorist attacks and other emergencies. Additionally, the Federal Bureau of Investigation (FBI) plays a crucial role in investigating and managing the response to terrorism-related incidents.