For more than six years, a progressive think tank in Washington, D.C., has been pressing the CIA in court for information about the late Colombian drug trafficker Pablo Escobar.

When a judge ruled in part against the agency this summer, telling the CIA to go back and do a more adequate search for documents, the government decided not to appeal the decision. In October, the CIA’s lawyers at the U.S. Attorney’s Office for the District of Columbia said it would take five years to complete the search for records under the broad terms of the request.