US Military Weapons Inscribed With Secret "Jesus" Codes
We train young men to drop fire on people... but we won't let
them write fuck on their airplanes because it's obscene!
- Col Kurtz, Apocalypse Now
Note that it's not even the morality of killing human beings that's being discussed here. It's that someone being killed might be offended. It's okay to kill people, you just can't hurt their feelings.