I am sure I can tell 99% of people who are native born and I believe most people can.
Not sure where this is going all I stated that what could you do with them when discovered as probably not be able to send them back to their country of origin and we would have to pay for their imprisonment. Cannot see anything remotely controversial here , even in the PC times which we live.
Let us concentrate on why this criminal activity is still going on after many reports.That is the bone of contention.