> If you punch a person in a supermarket, you are not banned from supermarkets.
Uh, I dunno. We definitely banned disruptive people from our supermarket. And we’d happily let other supermarkets nearby know that Mr. X was an asshole that should be treated with extreme caution (and vice versa).
I don’t see why the government needs to get involved with this though. Airlines are perfectly capable of making and sharing such a list themselves.