In the end it will come down to cost against benefit.
Redesign aircraft so that we are locked in an airtight little cocoon?
Bloody expensive when you look at the world wide fleet!.
Video cameras in the cockpit won't stop the collision with the building...just film it from a better angle than the networks will ever manage.
Remote control?...give me a break!
Increased security? Lets think about this for a minute...WAS there actually an airport security breakdown that contributed to this obscenity....NO...a bunch of individuals boarded some aircraft, with no weapons as such, took the aircraft over and rammed the the WTC and Pentagon. They could as easily have used the aircraft fire extinguishers to bludgeon the crew.
Think about it for a minute.....you will NEVER EVER be able to identify a potential terrorist pilot from all the other people boarding the aircraft. These people don't have ANY identifying physical features, they just believe in a cause in a way, and to an extent, we can't understand!
You are not going to stop these things from beginning....only from ending badly!
Do El AL have all the BS ideas people are coming up with...NO....have they been hijacked in living memory....NO, and they are at the epicentre of the terrorist world. rightly or wrongly they are the catalyst for most hijackings by Islamic Nutcases! What do they do? Carry armed and HIGHLY trained 'sky marshals'(Mosad chappies at a guess).
The ONLY way, IMHO, you are going to battle this proble in a credible manner is to have HIGHLY trained 'airborne snipers'.
We have regulations which dictate minimum F/As per number of seats, perhaps the same will need to be done for 'airborne security'.
No-one will no how many, where they are seated in the cabin, or ANYthing else about them. Lets face it, how many times would you even have to displace paying pax?
This ONE move would virtually stop hijacks dead,pun intended, in their tracks. The cost is miniscule compared to the overcomplicated crap half of the posts on this(and other threads) are suggesting!
These people already exist and are trained to the required levels, they're called SAS!
All this **** about landing a jet with a blood bath going on in the back 'cause we're not opening the door is crap.
Redesign nothing! Let little Johnny and his sister come up and wonder at the magic....I WANT to be sexually harrased by the girlies in the back....Lock me in my own atmosphere with a cut lunch for X hours of zero communication with my crew and you can shove this job right up your.....!!!!!
CHUCK