The Terror in the Skies article...
http://www.flyertalk.com/forum/showthread.php?t=337657
http://womenswallstreet.com/WWS/arti...&articleid=711
...is being discussed on many blogs.
In the comments on one I found some pratical advice for Frequent Air Travelers:
2. Charge down the aisle towards the hijacker. In a post 9/11 world, some fellow passengers are bound to be inspired by your example and rush with you. At least, you'd better damn well hope so. Try to close the distance in as little time as possible. Hold your shield out in front of you, with both arms bent, to absorb any blows. It helps if you shout a battle cry (or kiai, if you study the martial arts). It will throw your attackers off balance by startling them, it will alert eveyone else on the plane that they had better help you or they are in big trouble, and most importantly, it tends to help overcome fear.
Kiai, from Japanese, literally means "spirit shout", and it's exactly that. It is summoning the spiritual strength within you to help perform seemingly impossible physical actions. A good kiai can let someone punch through cinder blocks. A good kiai will will startle an opponent and make you feel as if you can take on an army. Trust me on this. It's just a very short yell.
Just scream and run at them, it's that simple.
http://asmallvictory.net/archives/007228.html#94372