Leaving aside that I don't believe for a second the story that Steve Jobs was caught with Shuriken in his carry on and leaving aside that Shuriken are a pretty stupid, imprecise, and not very deadly weapon, I would like to comment on what was quoted as said by Steve Jobs in that article. He (didn't) say: "it wouldn’t make sense for a person to try to hijack his own plane". It wouldn't make sense. But it also wouldn't make sense to let some passengers through with weapons because they are flying their own plane. You are just putting a price on hijacking other planes. A hijacker could pass the weapon to a passenger in a commercial flight (or in a plane owned by somebody else) or he/she could pretend he/she is flying in her own plane with the objective of smuggling the weapons. The threat by Steve of not returning to Japan, not only sounds like him, but it reflects the Apple looser mentality.