Good Article on the Unsolved Mysteries of Flight 93

from three years back. And none of these questions has been resolved since then.

1. The paper debris eight miles away, the FBI says, was wafted away by a 10mph wind; the jet-engine part flew 2,000 yards on account of the savage force of the plane's impact with the ground. The FBI conclusion: "Nothing was found that was inconsistent with the plane going into the ground intact." Aviation experts I have contacted are very doubtful about this. One expert expresses astonishment at the notion that the letters and other papers would have remained airborne for almost one hour before falling to earth.

2. The Air Force jets were on their way but failed to make it on time, according to General Richard Myers, chairman of the joint chiefs of staff. Fighters did finally approach Flight 93, he acknowledges, "moments" before it crashed, but did not shoot it down. Which begs the question why they were unable to arrive sooner to intercept an aircraft that clearly had terrorists aboard and that was flying straight for Washington more than one hour after another United Airlines plane had crashed into the second World Trade Centre tower. The report in the New Hampshire newspaper, and the one on CBS, have not been explained, and the air-traffic controllers in Cleveland who tracked the last minutes of Flight 93 on radar have been forbidden by the authorities to speak publicly about what they saw on their screens.

3. Neither the FBI nor anyone else in authority has explained the reported 911 phone call from the plane toilet, even though it appears to be the last of the phone calls made from the plane and even though it conveys the far from insignificant claim that there was an explosion on board. The FBI has confiscated the tape of the conversation and the operator Glen Cramer has received orders not to speak to the media any more.

4. The explanation furnished by the FBI for the mystery plane, whose existence it initially denied, serves less to reassure than to reinforce suspicions that a cover-up of sorts is under way, that the government is manipulating the truth in a manner it considers to be palatable to the broader US public. The FBI has said, on the record, that the plane was a civilian business jet, a Falcon, that had been flying within 20 miles of Flight 93 and was asked by the authorities to descend from 37,000ft to 5,000ft to survey and transmit the co-ordinates of the crash site "for responding emergency crews". The reason, as numerous people have observed, why this seems so implausible is that, first, by 10.06am on 11 September, all non-military aircraft in US airspace had received loud and clear orders more than half an hour earlier to land at the nearest airport; second, such was the density of 911 phone calls from people on the ground, in the Shanksville area, as to the location of the crash site that aerial co-ordinates would have been completely unnecessary; and, third, with F-16s supposedly in the vicinity, it seems extraordinarily unlikely that, at a time of tremendous national uncertainty when no one knew for sure whether there might be any more hijacked aircraft still in the sky, the military would ask a civilian aircraft that just happened to be in the area for help.

Most suspicious of all, perhaps, has been the failure of the FBI or anybody else to identify the pilot or the passengers of the purported Falcon, and their own failure to come forward and identify themselves.

There was one other plane, a single-engine Piper, in the air as Flight 93 headed to its doom. The pilot, Bill Wright, said that he was three miles away and so close he could see the United markings on the plane. Suddenly he received orders to get away from the hijacked plane and to land immediately. "That's one of the first things that went through my mind when they told us to get as far away from it as fast as we could," Wright later told a Pittsburgh TV station, "that either they were expecting it to blow up or they were going to shoot it down – but that's pure speculation."

From the overall evidence and the way the plane disappeared into a crater, my guess is the plane was first damaged in the air either by a missile or an on-board bomb, allowing the debris to spread widely. Then I think the plane was blown up a bomb when it crashed OR it was bombed by the white plane.

Another issue is -- how many planes were in that area? Flight 93, the white plane, a single engine Piper, an F-16 according to some accounts and also a C-130 overflew the area as well. How likely is it that two civilian planes were near flight 93 in this remote area?