It's the lists that I'm comparing not the passengers themselves - the point is that putting someone, after conviction, on an appropriate public list that 3rd pa

It's the lists that I'm comparing not the passengers themselves - the point is that putting someone, after conviction, on an appropriate public list that 3rd parties can use to decide whether or not to buy a house next door to a person or to sell a plane ticket to someone - is a way to apply public policy. It's a mechanism that has already been tried elsewhere, it's not a new idea