In fact, the entire premise that flight 93 was shot down would not even exist at all unless massive amounts of people knew that flight 93 was actually trailed by armed fighter jets that had actually asked for and had actually been given permission to take it down...
The concept that the passengers and crew would just fly it straight into the ground with armed military jets locked on target becomes less and less plausible...
If it is so widely reported, perhaps you could point us to some of that "reporting".
An outrageous falsehood. Go look at the FR threads from 9/11 when this was breaking news -- as soon as we knew there was a plane crash in rural PA, there was lots of (perfectaly reasonable) speculation of a shoot-down.
Name one of these people...