I think the part we're missing here is that anybody can go to the airport, park, stroll into baggage claim and open fire. He didn't have to come on the plane. I've checked guns and ammo many times when I fly. I generally don't bother with the ammo anymore as it's not enough to get through a match and just send it all ground. It can be in a factory box or reloader's box, either is fine as long as it's not over the weight limit. In all the years and times I've flown, I have never been asked for my permit and have only had a couple of nasty people from either the airline or TSA.