Is it ensure, insure, or assure?
An agency of the United States government, responsible for coordinating information-gathering activities outside the United States in the interest of national security. The CIA works with the Department of State and a variety of civilian and military organizations to protect American interests abroad and recommend directions for American foreign policy.
Note: The extreme secrecy of many of the CIA's operations has enhanced its reputation as an organization of espionage and intrigue.
Note: The operations of the CIA are directed by the National Security Council.