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

Yet inevitably, everyone unpopular will get bundled with the terrorists/pedophiles/non-humans according to the relevant in-group.

It always fascinates me how people don't draw pause from how eagerly people seem to be to shluff people into the "non-person" bin in ideological discussion.