Wouldn't at least one of the hundreds of people involved with 9/11 being an "inside job" have remorse and at least left final instructions with their attorney to "spill the beans" after their death (or even before)? I suppose the response could be, "The people involved are all so evil that none will ever experience remorse". This question has been raised for the JFK assassination, which would have involved only a couple dozen people, and no "death bed confessions" have come from that, almost 60 years ago, so perhaps it's too much to ask of the evil people.