Too many comments to reply to, so I’ll just go general here. I carry a Victorinox Spartan (for over 30 years now, the main blade has been sharpened fairly thin), a Leatherman original model, and a Gerber folder every day except when flying (and I haven’t had to fly for quite a few years now).
As far as airline travel goes, I have been pointing out to everyone since 9/11 that if you put 3 guys with box cutters against 50 guys with Buck knives, I know which way I’ll bet.
I also like to mention that the most reliable way to distinguish humans from baboons is that a human always carries a knife and a way to produce fire. Baboons don’t.
Keep ‘em sharp!
Carried these for years and continued having issues with the pins connecting the handles to the pliers becoming worn and causing a lot of frustration when things didn't unfold correctly.
Leatherman fixed this problem in the new wave model. I've been carrying the same LW for over three years now with no issues.