A police car passes trucks parked on the M20 motorway in Operation Stack near Ashford, U.K., on Monday, Dec. 21, 2020. Britain's biggest port stopped all traffic heading to Europe, triggering delays to food supplies after the discovery of a new variant of the virus prompted a wave of countries to ban travel from the U.K. Photographer: Chris Ratcliffe/Bloomberg
Britain's biggest port stopped all traffic heading to Europe, triggering delays to food supplies after the discovery of a new variant of the virus prompted a wave of countries to ban travel from the UShow more

In the twilight of Brexit talks, Europe sent Brits a message about borders