I had bought my ST-X in the Zurich international airport and it surely was post-9/11. I remember I wasn't allowed to carry it on me, though, so the lady at the swiss army shop arranged for it to be handled by the air hostesses () and I only got to get it back after we landed in Athens... Why should they have all the fun, is well beyond my comprehension...
It's great to receive such a warm welcome to the forum! I live in Zurich so I am not too far from Ibach. It's nice living in the land of Swiss army knives, but dangerous on the bank account...