Dr. Graeme MacQueen outlines how the connection of the 2001 anthrax attacks to Iraq was established in the public perception through often repeated lies in the MSM. He also discusses the role of the attacks in passing police state laws and applying foreign policy ( = popularizing invasion).
https://www.corbettreport.com/interview-1212-from-anthrax-to-iraq-with-graeme-macqueen/
http://www.claritypress.com/MacQueen.html
https://www.corbettreport.com/interview-944-graeme-macqueen-reveals-the-anthrax-deception/