Sinai ran a simulation for Forbes that shows how the stock market swinging one way or another would affect major economic indicators.

FORBES: The Underappreciated Impact Of Stocks On The Economy

The simulation constructed from the plane's data recorder shows the 757 making a U-turn over Ohio, as Jarrah heads the plane southeast, toward Washington, D.

NPR: Moussaoui Jury Hears Tapes of Flight 93 Crash