The UK is racing towards a Brexit breakup with no clear border agreements in place. On GZERO World, we take a look at the problems Brexit tightened borders mean for trade between the UK and The Republic of Ireland.
How will the UK (and Europe) get out of the Brexit mess that they're in? Ian breaks it down and then talks with the International Rescue Committee's CEO David Miliband, who also happened to be UK Foreign Secretary for a time.