No, not your usual 'can I take my ice axes on the plane?' question.
Just a heads up as my friend had two of those very small karabiner look a like key ring thingies confiscated while passing through Grenoble airport yesterday. Not the end of the world money wise but they did have some sentimental value.
She also got the 'empty your whole rucksack and pockets' treatment and then had to sign a form saying she agreed to have her items confiscated. No sign, no boarding of plane.
We had flown from Manchester a week ago with no problem and yesterday there were other people with apparently just as lethal equipment hanging from their packs - large metal padlocks, etc.
They did have some small, amateurish looking notices around the airport and upon detailed study there in all it's printed' laminated glory was a small, pixelated Karabiner.
So no Karabiners in your cabin luggage at Grenoble and probably no other climbing gear either.
You can, however, continue to tw*t your fellow travellers in the face with the 'look at me I'm a skier/boarder!' helmet that is swinging freely from your rucksack!