I saw this coming the day they announced the door redesign after 9/11. Unfortunately, there is not a perfect system. Control tower overrides could probably be hacked, giving air marshals an override code just adds more humans to the equation. Perhaps a computer that takes over if pilot gives plane instructions outside of safe parameters, but that type of system would be difficult to perfect and may create additional unforeseen problems. If anyone has a better system please post, but first research how the current systems work so you know what you are talking about. Some of the news media have done a good job of explaining how the timed lockout system works.
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I saw this coming the day they announced the door redesign after 9/11. Unfortunately, there is not a perfect system. Control tower overrides could probably be hacked, giving air marshals an override code just adds more humans to the equation. Perhaps a computer that takes over if pilot gives plane instructions outside of safe parameters, but that type of system would be difficult to perfect and may create additional unforeseen problems. If anyone has a better system please post, but first research how the current systems work so you know what you are talking about. Some of the news media have done a good job of explaining how the timed lockout system works.