in the union. so unionists say they want the sea border to go. when it comes to the other parties, nationalists and cross community parties, for example, the alliance party, they say they oppose brexit altogether, but the protocol is the least worst option and they suggest the practical impacts are being exaggerated by unionists. the biggest unionist party, the democratic union is, they say if the changes are not to their satisfaction, at the end of the month, they will pull ministers out of the power—sharing devolved government, so the stakes certainly are very high. government, so the stakes certainly are very high-— are very high. thanks very much. chris page _ are very high. thanks very much. chris page in _ are very high. thanks very much. chris page in belfast. _ the uk's largest commercial port says the supply chain crisis has caused a logjam of shipping containers. the port of felixstowe, which handles over a third of the uk's freight container traffic, blamed the busy pre—christmas period and haulage driver shortages. but officials say the situation is improving. megan patterson reports. packed up and no backed —— and now backed up. christmas stock stuck in