Thats correct and what I was saying. Terrorism has absolutely no history in multi piece fly rods. Bamboo rod makers in the USA made rods in multiple pieces decades before carbon for backpackers. As usual the UK was years behind because people didn't travel the same distances.I have a few of those, a couple made by Steve Parton, and a couple by the local sewing shop.
I don't want to get into a what can you carry on debate, but 4 piece rods were very well established before 911. I think it's a myth that anglers buy 4 piece rods just because of air travel - what proportion of rods actually get to an airport.
Manufacturers began to drop 2 and 3 piece rods because anglers stopped buying them because of the convenience of 4 piece rods, With no penalty in performance why would anyone buy not buy a 4 piece rod.
Some manufacturers, the rods I own, thought that for saltwater 3 pieces were the optimum. Others four. Now some say six.
As for suitcases being less likely to go missing or not arrive.......good luck with that