As a side note about TSA confiscation, if you leave out the unfamiliarity of the P-38 with the younger set, the laundry list of uses may also be applied to maybe (possible stretch, I know) the final priming or assembly of a troublemaking device. When Gary Powers was captured, the Russian press of the time called his simple Swiss Army knife "A sophisticated espionage tool kit" or somesuch. Lack of Common Sense sometimes applies to both Good Guys and Bad, I guess I have heard that some folk mail their pocketknives or other similar stuff ahead of time to their destination. Then, when it's time to go home, do it again, and have it waiting when they get there. 38s and 51s should be easy to send on this way.