I'm of the opinion that a sealed cockpit is the only way - regrettably steward/esses would have to get killed, whilst the pilots find the nearest airport, land, and disenbark through hatch whilst the plane is disablised somehow. Once highjackers know this is the routine - and that anything they do will not get them in the cockpit, then this should act as a deterent.
The only problem is that pilots will have to
stay locked in whatever - as one highjacker could play at being drunk & disorderly or whatever, to lure a pilot out, whilst fellow hijacker gained access.
This would mean that a locked cabin would mean that 100% no cockpit access throughout flight *whatever* happens - otherwise it is pointless.
[ 14 September 2001: Message edited by: RedMonkey ]
[ 14 September 2001: Message edited by: RedMonkey ]