Final answer:
The U.S. counterterrorism team is led by the Office of the Coordinator for Counterterrorism, which coordinates the efforts of different agencies.
Step-by-step explanation:
The U.S. counterterrorism team is led by the Office of the Coordinator for Counterterrorism. This office is pivotal in synchronizing the counterterrorism efforts across various government agencies. While the Department of Homeland Security has broad responsibilities, including guarding U.S. borders and other law enforcement functions, it is not specifically in charge of leading the counterterrorism team. The Director of National Intelligence oversees the intelligence community and the Director of the Central Intelligence (CIA) reports to the President and plays a crucial role in intelligence; however, the counterterrorism efforts are coordinated by the designated counterterrorism office.