The 9/11 cardinality debate is not about the facts, that is, the physical events and human actions that took place that day. Admittedly, those have been contested as well: according to various conspiracy theories, the buildings were targeted by American missiles, or demolished by a controlled implosion, in a plot conceived by American neoconservatives, Israeli spies, or a cabal of psychiatrists. But aside from the kooks, most people agree on the facts.
