Spotlight: Northern Ireland city wary of possible hard border as Brexit looms

Photo taken on March 20, 2019 shows the city wall in Derry, a border city in Northern Ireland, the United Kingdom. The looming possibility of a hard Irish border that could be created by Brexit causes agony to people in Derry, a border city in Northern Ireland not unfamiliar with dark days of division and violence. (Xinhua/Han Yan)?