Federal government of the United States
At various times since the creation of the Central Intelligence Agency, the Federal government of the United States has produced comprehensive reports on CIA actions that marked historical watersheds in how CIA went about trying to fulfill its vague charter purposes from 1947. These reports were the result of internal or presidential studies, external investigations by congressional committees or other arms of the Federal government of the United States, or even the simple releases and declassification of large quantities of documents by the CIA.