that he had made a similar rather more specific prediction in THE MAN WHO SAW TOMORROW (1980).
Maybe that's what THEY want us to think. Just kidding, the opportunity to use that line was too good to pass up.
Interesting essay actually- It brings home the idea for me that even Welles' so-called (often by himself) marginal works are worth looking into as there are frequently signs that he invested himself beyond what his role called for.
Unfortunately, there has been comparitively little study or documentation of these works, coupled with a certain negative stigma that Welles' reputation has in the mainstream media, making the study of Welles' prophetic inclinations rather a dodgy subject.
But I think you're onto something - although there would need to be more definite information, methinks.
The 'September 11' interview (the uploader's definition) is apparently part of a French experimental film, from 2008. http://fr.wikipedia.org/wiki/Lucifer_et_moi
It says that the footage was related to an unfinished film from 1982, Pantheon, involving Welles and Eugene Ionesco.