Clear Channel memorandum
Following the September 11 attacks in 2001, Clear Channel Communications (now iHeartMedia), the largest owner of radio stations in the United States, circulated an internal memorandum containing a list of songs that program directors felt were "lyrically questionable" to play in the aftermath of the attacks. During the time immediately after the attacks, many television and radio stations altered normal programming in response to the events, and the rumor spread that Clear Channel and its subsidiaries had established a list of songs with lyrics Clear Channel deemed "questionable." The list was not an explicit demand not to play the songs listed, but rather a suggestion that they "might not want to play these songs." The list was made public by the independent radio industry newsletter Hits Daily Double, which was not affiliated with iHeartMedia.