That’s hard to say. There might be a lot of precautions which are plausible and individually cheap, but all of them together are expensive. Some of the precautions might even be incompatible with each other.
I think that you’d need to have ways to know in advance which precautions are most important.
This being said, I really wish US airlines had reinforced cockpit doors before 9/11.
I really wish US airlines had reinforced cockpit doors before 9/11
Wouldn’t have helped. Before 9/11 the standard operating procedure—that is, officially approved strategy taught to pilots—was to cooperate with the hijackers, get the plane on the ground, negotiate from there.
That’s hard to say. There might be a lot of precautions which are plausible and individually cheap, but all of them together are expensive. Some of the precautions might even be incompatible with each other.
I think that you’d need to have ways to know in advance which precautions are most important.
This being said, I really wish US airlines had reinforced cockpit doors before 9/11.
Wouldn’t have helped. Before 9/11 the standard operating procedure—that is, officially approved strategy taught to pilots—was to cooperate with the hijackers, get the plane on the ground, negotiate from there.