Could Northern Ireland Spat Lead To Worse?

Britain's call to rewrite the Northern Ireland protocol has once again brought post-Brexit talks with the EU to a standstill. The EU, meanwhile, says that Britain needs to respect its international obligations- particularly one which was such a key tenet of the original divorce from the EU. So where will post-Brexit negotiations go from here? We speak to Michael Gasiorek, Professor of Economics from Sussex University to find out.