Ivashov hits the nail square on the head. "The organizers of attacks were the political and business circles interested in destabilizing the world order" (...) only "secret services and their current chiefs" (or retired staff with "influence inside the state organizations") have the "ability to plan, organize and conduct an operation of such magnitude.
Assuming you accept the claim that nobody but "secret services and their current chiefs" have the ability to conduct such an operation, how would you arrive at the conclusion that the organizers of the attacks included "business circles"?
For example, is Ivashov claiming that Mattel, maker of the Barbie doll, was responsible for the attacks on the World Trade Center? Which "business circles" is Ivashov talking about?
the worst single terrorist act of 1985 was a car-bombing in Beirut on March 8 that killed 80 people and wounded 256. "About 250 girls and women in flowing black chadors, pouring out of Friday prayers at the Imam Rida Mosque, took the brunt of the blast," Nora Boustany reported three years later: "At least 40 of them were killed and many more were maimed." The bomb also "burned babies in their beds, killed a bride buying her trousseau," and "blew away three children as they walked home from the mosque" as it "devastated the main street of the densely populated" West Beirut suburb. The target was the Shi'ite leader Sheikh Fadlallah, accused of complicity in terrorism, but he escaped. The attack was arranged by the CIA and its Saudi clients with the assistance of Lebanese intelligence and a British specialist, and specifically authorized by CIA director William Casey, according to Bob Woodward's account in his book on Casey and the CIA.
Source:
http://www.chomsky.info/articles/199112--02.htm#n29