CIA Document #1035-960: Using politicians and the media to counter criticism of the Warren Report — This document, dated Jan. 4, 1967, and marked PSYCH for Psychological Warfare, directs agents of the CIA to counter critics of the Warren Report by using "liaison and friendly elite contacts (especially politicians and editors)" and "to employ propaganda assets to answer and refute the attacks of the critics."

From "13 documents you should read about the JFK assassination," by Randolph Benson, IndyWeek (North Carolina), November 14, 2012.