Occasional reflections on Life, the World, and Mathematics


The newspapers are full of the new rules, requiring that electronic devices be powered up at the security checkpoint before entering flights to the US. Apparently, this is in response to information that terrorists may be hiding explosives in smart phones.

Now, I am fully aware of the limitations of the usual common-sense criticisms of anti-terror and anti-crime measures. Most criminals are not masterminds, and the same is true of suicide bombers. But here we’re not talking about a bunch of crackpots with big ideas and a truck full of fertiliser. The whole premise is that a master bomb designer is packaging a bomb powerful enough to bring down a plane into a Samsung smartphone. Surely, with modern miniaturisation, he can also design it to include a reasonable simulacrum of an Android home screen. Maybe he just won’t think of it, but unless the intelligence agencies have some very specific design specs for this device, it seems like they’re targeting a very narrow gap of stupidity: Smart enough to design an ingeniously concealed bomb, not smart enough to make it behave, at least superficially, like a smart phone. (“Why has the email app been removed and replaced by the “Blow Up the Plane” app?”)

(And one more thought: If the phone is designed to explode immediately upon being powered up, then the effect of this measure will just be to kill a few dozen people at the security check, which is probably an improvement, but hardly counts as a solid win for our side.)

I am reminded of my favourite bit of security theatre, from about 2006. Passing through security in Montreal, the man ahead of me had a bag filled with small cans and jars of what looked like Jamaican delicacies. Solid food is permitted on the plane, but liquids are forbidden. But these were in sealed tins, and obviously you couldn’t open them all. So the security agent did what any reasonable person would do: He read the labels to determine the contents and quantity. All the cans and jars were cleared to be taken on the flight.

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