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Right now, the Americans spend billions to defend against men with $5 boxcutters from Wal-Mart. Defense is more expensive than offense by a large multiple. A little more capability to attack requires an immense amount of additional capability to defend against.

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A little more capability to attack requires an immense amount of additional capability to defend against.

I think that depends on the type of weapon.

Part of the issue with airlines is how highly valued human life is.

If for example all we were trying to do is have an acceptable level of losses on drone aircraft we'd probably accept a much lower level of protection (and correspondingly lower costs)>

What you're saying is true at a high level. However, it isn't box cutters they're using and the situations are so radically different in every aspect that I'm not entirely sure why this anecdote is even relevant.

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