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Heathrow scraps liquid container limit

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191–200 of 839 posts

Re: Heathrow scraps liquid container limit

#191
post #87

This just adds confusion as to the purpose of all this. The motivation behind the liquid limits is that there are extremely powerful explosives that are stable water-like liquids. Average people have never heard of them because they aren’t in popular lore. There has never been an industrial or military use, solids are simpler. Nonetheless, these explosives are easily accessible to a knowledgeable chemist like me. The…

Correct. In the US, the TSA is just a government jobs program for the lowly skilled or unskilled. It's all security theater. TSA Chief Out After Agents Fail 95 Percent of Airport Breach Tests "In one case, an alarm sounded, but even during a pat-down, the screening officer failed to detect a fake plastic explosive taped to an undercover agent's back. In all, so-called "Red Teams" of Homeland Security agents posing as…

> the US, the TSA is just a government jobs program for the lowly skilled or unskilled.

I thought that was the US military?

Re: Heathrow scraps liquid container limit

#192

Earlier quoted context omitted.

I have a rock that keeps tigers away. For 30 years I have not encountered any tigers. That’s a pretty good record.

To answer the parent question, no not even close. TSA direct costs, passenger time wasted, flights missed, items confiscated. All so no bombs on planes. But somehow also no bombs at sports events or music concerts, or on trains or subways, or courthouses or.... So the TSA is either stunningly successful or a complete waste. I'd argue a complete waste, but hey, everyone in a TSA uniform drawing a paycheck us entitled…

> But somehow also no bombs at sports events or music concerts, or on trains or subways, or courthouses or....

Boston marathon? The Madrid train bombings? 7/7? Ariana Grande?

Airport security has been stunningly successful.

Re: Heathrow scraps liquid container limit

#193

This just adds confusion as to the purpose of all this. The motivation behind the liquid limits is that there are extremely powerful explosives that are stable water-like liquids. Average people have never heard of them because they aren’t in popular lore. There has never been an industrial or military use, solids are simpler. Nonetheless, these explosives are easily accessible to a knowledgeable chemist like me. The…

The security theatre is there to make people feel safe. It's about emotion not logic.

And to make some people richer.

Re: Heathrow scraps liquid container limit

#194
My GF is from East Asia and has travelled almost 100 countries, anything from rich first world to poor 3rd world countries.

She was absolutely shocked to find that liquid container limits were enforced in northern Europe. She would just put her makeup bag with cleansers and gels and everything in her carry-on and travel the world.

Re: Heathrow scraps liquid container limit

#195

Earlier quoted context omitted.

This illustrates a point though. TATP you could synthesize on a plane is entirely inadequate to bring down a plane. It also requires a bit more than acetone and hydrogen peroxide. Pan Am 103 required around half a kilo of RDX and TATP is very, very far from RDX. The idea of synthesizing a proper high-explosive in an airplane lavatory is generally comical. The chemistry isn’t too complex but you won’t be doing it in a…

> TATP you could synthesize on a plane is entirely inadequate to bring down a plane Even a small fire can down a plane, especially when distant from diversion airports.

No, you can’t bring down a plane with a small fire. If that was possible terrorists would use a newspaper and a lighter.

Re: Heathrow scraps liquid container limit

#196

Good. This should happen on all airports now. Otherwise it's useless. You won't be flying from Heathrow to Heathrow.

Hmm, I once transited in Heathrow in a return flight from europe to the US and had to go through Heathrow security for whatever reason, where they subjected me to liquids rules way stricter than either my source or destination did.

E.g. 1 day use contact lenses and prescription creams all having to fit in a tiny plastic bag. So I'm happy for this change.

Re: Heathrow scraps liquid container limit

#197
post #87

Earlier quoted context omitted.

Correct. In the US, the TSA is just a government jobs program for the lowly skilled or unskilled. It's all security theater. TSA Chief Out After Agents Fail 95 Percent of Airport Breach Tests "In one case, an alarm sounded, but even during a pat-down, the screening officer failed to detect a fake plastic explosive taped to an undercover agent's back. In all, so-called "Red Teams" of Homeland Security agents posing as…

While still theatre to a degree, that was 11 years ago.

Do you have evidence that anything has changed?

Re: Heathrow scraps liquid container limit

#198

Earlier quoted context omitted.

I have a rock that keeps tigers away. For 30 years I have not encountered any tigers. That’s a pretty good record.

To answer the parent question, no not even close. TSA direct costs, passenger time wasted, flights missed, items confiscated. All so no bombs on planes. But somehow also no bombs at sports events or music concerts, or on trains or subways, or courthouses or.... So the TSA is either stunningly successful or a complete waste. I'd argue a complete waste, but hey, everyone in a TSA uniform drawing a paycheck us entitled…

It's just not bombs that are a danger. You really don't want anyone to set the airplane on fire either, or start shooting people or holes into the fuselage.

AFAIK America has had plenty of shootings, and probably arson attacks too over that time period.

Re: Heathrow scraps liquid container limit

#199

This just adds confusion as to the purpose of all this. The motivation behind the liquid limits is that there are extremely powerful explosives that are stable water-like liquids. Average people have never heard of them because they aren’t in popular lore. There has never been an industrial or military use, solids are simpler. Nonetheless, these explosives are easily accessible to a knowledgeable chemist like me. The…

It's about making people feel safe. We're not rational beings, so what do you do about an irrational fear? You invent a magical thing that protects from that irrational fear. You're orders of magnitude more likely to die in a road accident, but people don't fear that. They fear terrorist attacks far more. You can't protect against an opponent who's motivated to learn the inherent vulnerabilities of our systems, many…

> It's about making people feel safe.

I don't think that's a common perception of airport security. Few people take reassurance from it, most consider it a burden and hindrance that could stop them getting their flight if they don't perform the correct steps as instructed.

The lifting of this restriction is an example, the overwhelming response is "oh thank goodness, now I don't have to pay for overpriced water" and not "is this safe?"

Re: Heathrow scraps liquid container limit

#200
post #2

Not because of a sudden outbreak of sanity, but because they have CT scanners now.

3-1-1 is rarely enforced. I always got confused why the 100ml limit existed, since I could just take multiple bottles of 100ml of whatever I wanted and it was okay. Then I realized that technically I only could take 3 bottles but I’ve been getting away with more for decades.

It’s as many bottles sized 100ml or less that you can fit in a 1 liter bag.
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