On 10/14/2009 04:43 PM, Rod & BJ Jacobson wrote:

As a aside simply locking the pilots
door would have specifically prevented 9/11 and that both private and public
individuals failed to anticipate such a obvious security breach bodes poorly
for prevention of all other creative future attacks.

Up until 9/11, the normal course of action was to fly to where the
hijacker wanted to go, and then stall on the ground to give time to put
together an assault on the aircraft. There was little to be risked by
letting the hijacker into the cockpit, and the alternative was them
shooting the other passengers (aka hostages) one by one.

After 9/11 the game is different. When the hijacker might want to turn
the whole plane into a flying bomb, the other passengers have nothing to
lose by attacking the hijackers, and the pilot has nothing to gain by
letting them into the cockpit. Basically, the terrorists ruined
everything for "normal" hijackers.

Chris