A woman walks past past graffiti with the words 'No Irish Sea Border' in Belfast city centre, Northern Ireland, Wednesday, Feb. 3, 2021. Politicians from Britain, Northern Ireland and the European Union are meeting to defuse post-Brexit trade tensions that have shaken Northern Ireland’s delicate political balance. British Cabinet minister Michael Gove, European Commission Vice President Maros Sefcovic and the leaders of Northern Ireland’s Catholic-Protestant power-sharing government will hold a video conference to discuss problems that have erupted barely a month after the U.K. made an economic split from the 27-nation EU. (AP Photo/Peter Morrison)

Vehicles disembark from the P&O ferry arriving from Scotland at the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended checks on animal products and withdrawn workers from two ports after threats against border staff. (AP Photo/Peter Morrison)

Police patrol the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended checks on animal products and withdrawn workers from two ports after threats against border staff. (AP Photo/Peter Morrison)

Police patrol the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended checks on animal products and withdrawn workers from two ports after threats against border staff. (AP Photo/Peter Morrison)

Police patrol the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended checks on animal products and withdrawn workers from two ports after threats against border staff. (AP Photo/Peter Morrison)

Vehicles at the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended post-Brexit border checks on animal products and withdrawn workers after threats against border staff. (AP Photo/Peter Morrison)

A P&O worker closes the gate on the European Causeway ferry from Scotland in the port of Larne, Northern Ireland, Tuesday, Feb. 2, 2021. Authorities in Northern Ireland have suspended post-Brexit border checks on animal products and withdrawn workers after threats against border staff.(AP Photo/Peter Morrison)

A woman walks past past graffiti with the words 'No Irish Sea Border' in Belfast city centre, Northern Ireland, Wednesday, Feb. 3, 2021. Politicians from Britain, Northern Ireland and the European Union are meeting to defuse post-Brexit trade tensions that have shaken Northern Ireland’s delicate political balance. British Cabinet minister Michael Gove, European Commission Vice President Maros Sefcovic and the leaders of Northern Ireland’s Catholic-Protestant power-sharing government will hold a video conference to discuss problems that have erupted barely a month after the U.K. made an economic split from the 27-nation EU. (AP Photo/Peter Morrison)

A woman walks her dog past past graffiti with the words 'No Irish Sea Border' in Belfast city centre, Northern Ireland, Wednesday, Feb. 3, 2021. Politicians from Britain, Northern Ireland and the European Union are meeting to defuse post-Brexit trade tensions that have shaken Northern Ireland’s delicate political balance. British Cabinet minister Michael Gove, European Commission Vice President Maros Sefcovic and the leaders of Northern Ireland’s Catholic-Protestant power-sharing government will hold a video conference to discuss problems that have erupted barely a month after the U.K. made an economic split from the 27-nation EU. (AP Photo/Peter Morrison)