MATELO & Grounded27
There is no doubt that a Swiss army Knife or a leatherman tool are just that tools.
As such depending on the type of aircraft they may well be needed to do a standard pre flight check. I wonder just how happy the passengers are about the fact that security have taken away (or think they have !) the means for me to drop the fuel sticks to find out how much fuel there is on the aircraft !
It is said you should never argue with idiots and drunks.......... I would add security to that list.