Here's a cite, so....now what? I am not a fan of restrictions on employers hiring and firing ability....but if we want to talk theory, that's one thing. If we want to talk reality, here's the law.
Is an employer asking him if he owns a gun the same as an employer requiring that he disclose that information? At least, is it the same in a court of law? Serious question, I don't know and I figured you may know a thing or two about that for some reason...