“Media assets will eventually include ABC, NBC, CBS, Time, Newsweek, Associated Press, United Press International (UPI), Reuters, Hearst Newspapers, Scripps-Howard, Copley News Service, etc. and 400 journalists, who have secretly carried out assignments according to documents on file at CIA headquarters, from intelligence-gathering to serving as go-betweens. The CIA had infiltrated the nation's businesses, media, and universities with tens of thousands of on-call operatives by the 1950's. CIA Director Dulles had staffed the CIA almost exclusively with Ivy League graduates, especially from Yale with figures like George Herbert Walker Bush from the "Skull and Crossbones" Society.”
http://www.apfn.org/apfn/mockingbird.htm