I will be flying and transporting two handguns for the first time. They will be in a plastic Pelican case with two locks. When the they are give to the airlines for check-in, do they open the case to confirm they are handguns and are unloaded? Can ammunition be transported in the same container with the handguns? Do the airlines record serial numbers? Isn't a lock gun case a dead giveaway that firearms are inside and ready target for theft? Appreciate any help. Thanks.