[pjc50]

Still not "in the wild"; they were arrested in the planning stages, and there is no evidence that at any point they successfully produced TATP let alone getting any of their components through security or whether it would have worked on a plane.

That was one group, thirteen years ago, and since then everyone is limited to 100ml? Forever?

[illiac786]

Anyway, you’re allowed 10 times 100mL, in separate containers. You can easily blow up an airplane with a liter of the right liquid…

[marcosdumay]

> You can easily blow up an airplane with a liter of the right liquid

Yeah... The thing is that you can't. Not easily.

You can't do much with a liter of some liquid that won't happen by chance on the way to the airport. And you can't change the liquid a lot while on the plane. You can barely fit seated there.

[illiac786]

My understanding is that there is some form of reasoning behind the 100mL limitation. Sufficiently easy to procure liquids can blow up a plan when they are in a container bigger than 100mL (300mL, 1L, I don’t know what the findings were).

Now, what I do know is that pouring liquids together in a largers plastic bag is very easy, you can do that inside a backpack. I had to do this multiple times due to leaky milk bottles, leaky shampoo bottles, etc. The plastic bag simply has to be strong enough to stay in form while filling up.

Hence my point that this 100mL limitation is useless (from a volume limitation point of view), and I assume (not an expert on explosives) that if there was a limitation at 100mL, there must be something dangerous enough above this volume. Hence the overall regulation is useless.

Hope it clarifies my reasoning.

[marcosdumay]

Where does the popular idea that you can simply mix things into explosives come from?

You can't make a strong explosive in a portable plastic bag. If you get the chemistry right, you will just burn yourself and maybe your neighbor. You won't even lose fingers, that requires better conditions. AFAIK, that's exactly what happened to the original liquid bomber, that was caught after he burned himself mixing things on the bathroom. In much more stable conditions than a bag, but still not nearly stable enough.

The guy that tried to carry solid explosives on his underwear was also caught only after he burned himself, because that's also not a practical way to carry them. As did the guy that tried to carry them on his shoes.

There are some very robust reasons why all those plots are doomed to failure, but those are the ones the US focus on (and basically impose on the rest of the world), while there are many perfectly viable vulnerabilities to exploit that nobody wants to close because they would impose more restrictions on the passengers. And that nobody is exploiting because it requires knowing what to do, and people that know what to do aren't normally prone to killing random strangers.

[illiac786]

Are you saying that even with 1L it’s not possible?

Well, then the rule is even more stupid than I thought =)