It feels like people do this to Canada to get in to the USA as well. Ireland->UK seems to be increasing as well because of the Common Travel Area. I think a l

It feels like people do this to Canada to get in to the USA as well. Ireland->UK seems to be increasing as well because of the Common Travel Area. I think a lot of historical agreements of this nature will not hold up in the era of mass international migration. The CTA is obviously a complex example.