“Security theater refers to security measures that make people feel more secure without doing anything to actually improve their security. An example: the photo ID checks that have sprung up in office buildings. No-one has ever explained why verifying that someone has a photo ID provides any actual security, but it looks like security to have a uniformed guard-for-hire looking at ID cards. Airport-security examples include the National Guard troops stationed at US airports in the months after 9/11 — their guns had no bullets…

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Politicians naturally want to do something in response to crisis, even if that something doesn’t make any sense.
Often, this ‘something’ is directly related to the details of a recent event: we confiscate liquids, screen shoes, and ban box cutters on aeroplanes. But it’s not the target and tactics of the last attack that are important, but the next attack. These measures are only effective if we happen to guess what the next terrorists are planning. If we spend billions defending our rail systems, and the terrorists bomb a shopping mall instead, we’ve wasted our money. If we concentrate airport security on screening shoes and confiscating liquids, and the terrorists hide explosives in their brassieres and use solids, we’ve wasted our money. Terrorists don’t care what they blow up and it shouldn’t be our goal merely to force the terrorists to make a minor change in their tactics or targets.

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We should treat terrorists like common criminals and give them all the benefits of true and open justice — not merely because it demonstrates our indomitability, but because it makes us all safer. Once a society starts circumventing its own laws, the risks to its future stability are much greater than terrorism. (>>)