In message , at 17:17:49 on Mon, 23
Jan 2017, Neil Williams remarked:
How would that work? People who have been marked as unwelcome being
met at the gate (in the UK), or is the idea to compel the airlines
not to let them board?
The latter is how it already works.
I suspect the "no-fly" list only has people on it who are regarded
as a
terrorist threat, rather than economic migrants.
The UK unwelcome list might include anyone who had been deported
for any
reason, or who had a UK criminal conviction, or who had broken UK
immigration rules in the past.
You think the anti-terrorist no-fly list would scale like that?

Yes, of course it would, why not? Hardware is cheap these days. For a
bigger database, all you need is more storage and more/faster CPUs.

No, the scarce resource is those deciding who to put on the list, and
handling complaints when people are denied boarding.
--
Roland Perry