Schneier on Security: Separating Explosives from the Detonator
schneier.com
schneier.com
That's pretty much the best summary of the issue I've ever read.
Now the TSA may be considering restricting people to their seats in the last hour, with nothing on their lap. (Does that mean no blankies too?)
I eagerly await the first no-tolerance arrest, when a passenger leaves his seat against regulations in the last hour to subdue a bomber.
Theatre in that form might have more effect; random security measures might confuse or throw off potential terrorists.
(I still think it's all pretty silly but that struck me as at least a slightly less than inane idea :))
The way the TSA is actually doing things, however, is simply to ask "what did the last terrorist do? OK, ban that." Which doesn't stop the last guy, since he already did it, and won't stop the next guy, since he's going to do something else.
Though what he did was walk onto a plane with a block of semtex. They should try addressing that before restricting in-flight entertainment and toilet breaks.
I actually caught a flight back from Schiphol to Heathrow last week. Heathrow's security on the flight there was annoyingly thorough as usual (shoes off, belts off, laptops out, liquids in a clear bag with 100ml limit... none of which would have helped this case!). The Dutch security was different: hand luggage through the scanner, no special treatment for laptops, liquids or shoes - much more agreeable. Then they put you through a "security scan", one of these new millimetre wave scanners that are supposed to detect items strapped to the body - like drugs and guns. I've been wondering did Umar Farouk Abdulmutallab have the PETN strapped in his underpants, and the fancy new security scan failed to pick it up? Or was it in his bag, where the X-ray didn't see it?
TSOs are very often lowest-rung idiots.
But I know the policy here is pretty similar to the TSA.
I agree though; the UK staff are usually more friendly/sane.
Obviously, stewardesses telling people to stay in their seats won't prevent bombers from detonating their bombs, but it may make their behavior more noticeable to other passengers.
I'm very surprised that there still isn't some screening machine that detects all explosives. How hard can it be? It'd be much nicer to just walk through a big sniffing machine than all the other ineffective rigmarole.
I think the state of the art technology for odor-based explosive screening is "dogs".