I assume that leftists are concerned to build mass movements of opposition to various aspects of the capitalist state and other capitalist institutions, and ultimately against capitalism. As far as I can tell, such organizing can only work if grounded in a factual basis that is generally available rather than on the kind of facts that can only be determined by archival research or state investigations with subpoena power. Even if 9/11 had been a conspiracy on the part of some capitalist grouplet, it would be counter-productive to continue to attempt to show that, and if it were shown to be the case it would be even _more_ counter-productive politically.
Consider the Tonkin Bay Resolution 'conspiracy' and the Watergate conspiracy. In respect to the first, 'proving' it would have been useless. There were so many more important reasons to oppose the Vietnam War, and many if not most of those reasons fed into a more general opposition to imperialism (and thus ultimately to capitalism), while the only 'lesson' that one could draw from the Tonkin Bay Affair was that there were some crooks in government. Big Deal. Watergate as a whole added up to a wonderful defense of the fundamental beauty and rightness of capitalist democracy. The System Works. Carrol
