What NI concessions are those? AFAICT Britain conceded nothing that it wasn't already required to do by the Good Friday agreement. BTW, I don't agree about tho

What NI concessions are those? AFAICT Britain conceded nothing that it wasn't already required to do by the Good Friday agreement. BTW, I don't agree about those checks. Skipping those would not be doable for the EU. Dozens of countries have MFN treaties with the EU. If the EU were to offer Britain anything that those countries aren't offered (such as not checking imports/exports) then all of those trade treaties would need to be renegotiated, because those countries would no longer be most favoured. IIRC some sixty countries' parliaments would have to vote on the resulting treaty changes. That's too much to be doable.