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nlawalkertoday at 4:03 AM6 repliesview on HN

Let me get this straight. If the article is correct, the new capabilities are related to better detection of large liquid containers, not determination of whether or not the liquid is dangerous.

So - you couldn’t take large amounts of liquids previously because some liquids in large amounts might be able to be weaponized. If you were caught with too much liquid (in sum total, or in containers that are too large) they’d throw it out and send you on your way.

But now that they have the ability to detect larger containers, they… do what? Declare that it’s safe and send you on your way with it still in your possession?


Replies

dkerstentoday at 4:48 AM

Dublin has been relaxing their restrictions for a while now, and when I travelled two weeks ago, had also completely dropped the rules. You no longer need to remove liquids or electronics from bags, and the liquids per bottle limits are much higher (don’t remember exactly, maybe 2 litres) with no restriction on total number of bottles.

I watched a YouTube video about it a few months back and apparently the new devices, at least those used in Dublin, are much more accurate in detecting the difference between materials that previously looked similar to the machines, they can also rotate the images in 3d to get a look from different angles. Both of these make it easier to tell whether a substance is dangerous, apparently.

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bulbartoday at 5:50 AM

When you don't know much about a topic, probability is higher that your are missing some piece than some entity doing things that make no sense.

I know it's easy to get the impression that's not the case. But when your stop making fun of / belittle such events / persons / decision and be curious instead you start to realize that more often than not you are just missing a piece of information.

The truth oftentimes is just not interesting enough and not clickbait worthy.

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jmward01today at 4:07 AM

I believe the article mentioned density as well. I suspect that is extremely key in determining what it is, or at least determining if it is something really odd that should get additional screening.

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necovektoday at 4:50 AM

It's not just large amounts of liquids: it was my understanding that this is both a restriction on large amounts of liquid, but particularly on large containers needed for an explosive of sufficient destructive power.

You could always easily work around the liquid amount restriction (multiple containers over multiple people), but if you still need a large container, it becomes harder.

I don't know if this is true or if a resealable plastic bag also works, for instance (that would be funny, wouldn't it?).

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lambdaonetoday at 11:08 AM

It can detect not only large containers of liquids, but (up to a point) what liquid is in them.

dexwiztoday at 5:41 AM

Have you never been screened where they swab your items and stick it in a machine? That is to detect explosives. They can use the first machine to target people for follow up screening.

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