Question

Who is responsible for leading the federal government's response efforts to ensure that the necessary coordinating structures, leadership, and resources are applied quickly and efficiently to large-scale and catastrophic incidents?

Answer 1

I believe The answer is: The president

Handling emergency situation is the duty of the executive branch of the government and the president is acting as the head of the executive branch. In such situation, the president had the responsibility to mobilise various government agencies to work together and provide a solution for the situation.