A useful metaphor

Hav­ing secu­rity “sys­tems” that aren’t used cor­rectly are like doors that aren’t locked. You don’t need another lock, you just need to use the lock you have.

I say this because this lat­est inci­dent will most likely result in addi­tional secu­rity checks at air­ports and it might not have hap­pened had the exist­ing checks been used (such an approach might have made 9/11 turn out dif­fer­ently as well, but I digress).

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