And I remember reports from passengers that another arab passenger was filming the whole thing. Which makes me think it was a trial run too. Weird. You do trial runs for a reason, to analyze the security precautions so you can deal with them when the real thing is launched. Which means, they are going to do it. We may not know what happened to the airliner, just that it went down at sea.
Ten airliners that disappear the same day is another matter. Or one airliner that blows up over a city (I still think that American Airlines #587 over Far Rockaway was Shoebomber #1).
-PJ