 Filming was conducted in Morocco, New York City, Toronto, Hamilton, Ontario and Washington, D. C. The production was one of the few allowed to film at the headquarters of the Central Intelligence Agency in Langley, Virginia.ABC received a range of criticism from terrorism experts and people portrayed in the film that "The Path to 9/11" contained false scenes, distorted events and misrepresented actions of people.ABC received letters from Richard Clarke, Chief Executive Officer Bruce R. Lindsey of the William J. Clinton Foundation, and Douglas J.