By taking their criticisms to such extremes, though, the scholars risk caricaturing the opposition. None the less, they are pushing on, and imploring Congress to reopen the investigation.
"We're academics and we're rational, and we really believe Congress or someone should investigate this," says David Gabbard, an East Carolina education professor and Sept. 11 scholar. "But there are a lot of crazies out there who purport that UFOs were involved. We don't want to be lumped in with those folks."