Lorries queue at Check-in at the port in Dover, Friday, Dec. 11, 2020. The U.K. left the EU on Jan. 31, but remains within the bloc's tariff-free single market and customs union until the end of the year. British Prime Minister Boris Johnson says there is a "strong possibility" that talks on a post-Brexit trade agreement with the EU will end without agreement. (AP Photo/Frank Augstein)