Micheal T. Hurley; Kenton V. Smith. “8”. I Solemnly Swear. p. 128. ISBN0-595-29947-4. "Circular reporting occurs when what is reported is fed back to the originator in revised fashion which makes it difficult to objectively view the end product until you can trace back the sources to determine where the original information actually came from. Pan Am would eventually try to play that game by trying to introduce into court news reports that they themselves had a hand in producing."Google Book search, retrieved on 23 July 2009.
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articles.latimes.com
Drogin, Bob; Hamburger, Tom (2006年2月17日). “2006-02-17”. Los Angeles Times. http://articles.latimes.com/2006/feb/17/nation/na-niger172017年6月30日閲覧. ""This became a classic case of circular reporting," said a U.S. intelligence official who spoke on condition of anonymity because he is not authorized to talk to reporters. "It seemed like we were hearing it from lots of places. People didn't realize it was the same bad information coming in different doors.""
