How many illegal immigrants does Ireland have, and how do they deal with them?
Aye, that be a good question. A few illegals in Ireland articles...
http://www.migrationpolicy.org/article/ireland-rapid-immigration-recession
http://www.immigrationcontrol.org/
http://www.thejournal.ie/undocumented-irish-same-as-us-working-3084359-Nov2016/