For most TSA approved locks (the 3-digit combination locks) you can pick the rotating wheels to deduce the combo much more reliably than picking the keyhole, an

For most TSA approved locks (the 3-digit combination locks) you can pick the rotating wheels to deduce the combo much more reliably than picking the keyhole, and you leave no trace. I guess what I'm saying is that most TSA approved locks were already quite vulnerable to anybody who really wanted to pick them with or without a 3D printer.