Anyone with a cursory knowledge of American history knows the US intelligence services are not above targeting their own citizens for disinformation campaigns. In perhaps the most famous case, the CIA employed a cadre of journalists to spread disinformation during the Cold War under a program known as Operation Mockingbird.
The program was supervised at the time by the publisher of The Washington Post, the late Phil Graham, and included approximately 3,000 writers, editors, and publishers.
The network was not just large, but pervasive throughout the mainstream media. According to Carl Bernstein, the network included: CBS, Time Inc., The New York Times, NBC, the Associated Press, United Press International, Reuters, Hearst Newspapers, Scripps?Howard, Newsweek magazine, the Mutual Broadcasting System, the Miami Herald and the New York Herald-Tribune.