Paddy Burke (Fine Gael) | Oireachtas source

A lorry in the North might be treated differently from a lorry in the South. The lorry in the North, if travelling through the UK, would not be seen as going through a third country, whereas the lorry from southern Ireland, if travelling through the UK, would be seen as travelling through a third country. How is that situation going to pan out if there is to be no border?