Thanks for the link! Awesome stuff.. *drools*
Oh, I don't think we can fool the hijackers with a display change. If they know a plane has that dummy system on board, they'll just ignore the warnings. An actual fuel dump will leave them helpless (whether they choose to verify or not). But there is probably an easier way, some sorta airborne immobilizer.
Going a bit off topic, have you guys played Flightgear? Its a free flight simulator.. awesome stuff. I tried taking off with a A-10 Thunderbolt, I thought I could simply release the brakes and increase trottle. Turns out I have to press a dozen switches before I could even move (you can click the buttons as well as move levers on the cockpit with the mouse). Love the realism
(though, they have a UFO and Santa Claus models, which is just crazy to fly, lol)