Reply #56: Seems I'm not the only one to suggest the A-10

[exploited]

This site has collated A LOT of info about Flight 93 and the rest.
http://thewebfairy.com/killtown/flight93.html#white%20jet

Good stuff.

It claims the executive jet involved in Flight 93 was owned by NetJets and that company was owned by billionaire Warren Buffett of Berkshire Hathaway. Buffet spent the morning of 911 hosting a charity golf event at the U.S. Strategic Command headquarters at Offutt Air Force Base in Omaha, which is where the shrub flew to on Air Force One later in the day for safety.

P.S. I still reckon you could check the validity of the jet that did the waving wings sighting.

The 911 report puts it at a location in time and space. Check for the nearest airport that could accommodate a mid-size BizJet and assume it must be the destination. Connect the two points and trace the flightpath back to a point when the nationwide stop alert was given (some 30 minutes or so earlier I believe @ the Falcon 20 economical cruise speed of 470mph*). At this point check for the nearest airport that could accept the jet. If another airport is nearby then the sighting may be bogus. Coversely, if there are none it may be shown to be without doubt valid.

*
http://www.airliners.net/info/stats.main?id=173