Security Theatre be dammed
I've been abroad twice in the last few months and I've come to the conclusion that it doesn't matter what restrictions they put on passengers, if you just ignore them and don't look like a terrorist, there's little chance of you being detected.
For example, I left a small bottle of contact lens solution and a scalpel blade in my hand baggage and amazingly, despite the amazing security at Gatwick(!), wasn't detected...
It's obviously so simple to bypass the xray operator as they have become so bored stupid looking at multicoloured shapes on their screens that they fail to see a smaller shape hidden in the mass of metal objects in my bag (laptop & mobile chargers, USB HD, speakers, etc).
Wrap a scalpel in foil to change the outline and you can't tell what it is, then you actually have something more dangerous that the metal cutlery they banned years ago. It's all designed to make you live in fear - then thank the authorities for allowing them to picture you without clothes on.
Privacy and common-sense - they've heard of it!
Anon for obvious reasons...