"I doubt that terrorists will be able to take over planes anymore. Once it became apparent that terrorists seek to kill instead of hold hostages, even liberals will die trying to prevent it"
The article was not about terrorists taking over a plane -- it was about terrorists blowing up a plane in flight, which apparently they are able to do rather easily, thanks to politically correct thinking by the people in charge of our safety.
Yet the fact that the whole world apparently knows about this non incident doesn't mean anything.
To me, the more destructive scenario would be to wait until the plane had just docked at the gate and then detonate the bomb (assembled in flight) via cell phone signal. Presupposing a sufficiently powerful explosive, that would destroy several aircraft, kill more people and damage/destroy the terminal as well as those inside it.
Imagine this being done at LAX. That airport would be useless for weeks, maybe longer. Count up the economic impact on that one.