The British government has been “largely successful” in its handling of post-Brexit border issues with the EU, but it has relied on temporary measures that are “not sustainable,” the UK’s National Audit Office (NAO) said in its latest report. The much-feared long queues at the UK-EU border did not materialise at the end of the Brexit transition period on Jan. 1, 2021, as the government “successfully introduced systems, infrastructure, and resources to allow the trading of goods to continue,” said the report, which was published on Nov. 5. But the absence of long queues was “partially due to traffic flows being reduced because of stockpiling, traders’ wariness about the new import controls, and the impact of the pandemic,” the NAO said. The pressure at the border was also relieved by the fact that the UK government has delayed three times the introduction of full import controls on goods from the …