[meyer]

Maybe, but I am about sure that a box knife would set off the metal detector.

Correct me if I'm wrong, but weren't small (<3" blade) knives legal on planes up until 9/11?

[Jhoffa_]

Correct me if I'm wrong, but weren't small (<3" blade) knives legal on planes up until 9/11?

I dunno. I know I never took one with me through the checkpoint or in my carry on just in case.

[weaponeer]

Correct me if I'm wrong, but weren't small (<3" blade) knives legal on planes up until 9/11?

Actually, < 4" blade and "non-menacing" were allowed.