https://en.wikipedia.org/wiki/Iraq_Dossier
"much of the work in the Iraq Dossier had been plagiarised from various unattributed sources including a 13-year-old thesis produced by a student at California State University. The most notable source was an article by then graduate student Ibrahim al-Marashi"
Also:
https://www.theguardian.com/world/2011/feb/15/defector-admit...
Even older (Gulf War) claims of the "enemy" killing babies in the incubators were a complete fabrication:
https://en.wikipedia.org/wiki/Nayirah_testimony
"The Nayirah testimony was a false testimony given before the Congressional Human Rights Caucus on October 10, 1990 by a 15-year-old girl who provided only her first name, Nayirah." It "was cited numerous times by United States senators and President George H. W. Bush in their rationale to back Kuwait in the Gulf War. In 1992, it was revealed that Nayirah's last name was al-Ṣabaḥ and that she was the daughter of Saud Al-Sabah, the Kuwaiti ambassador to the United States. Furthermore, it was revealed that her testimony was organized"
"On January 6, 1992, The New York Times published an op-ed piece by John MacArthur entitled "Remember Nayirah, Witness for Kuwait?"[57]" "The story earned MacArthur the Monthly Journalism Award from The Washington Monthly in April 1992, and the Mencken Award in 1993."