Israel is known to be obsessed with security, and rightly so. And yet, Israeli airport security will let you, without any trouble, bring any amount of liquids, more or less, onboard. Examples: 1.5L bottle of water, opened? Go ahead. All manner of cosmetics (small amounts)? We don't need to look at that. Bottle of wine? Why not.
If bringing more than a tiny amount of liquids onboard is such a security risk, why does Israel allow it? And if not, why do so many other countries (including the US and the EU) restrict it?
(This question is related, but while it asks whether, I would like to understand why.)