Protesters clashed with police in the southern Chinese megacity of Guangzhou overnight Tuesday into Wednesday, according to witnesses and footage, part of a wave of demonstrations across the country triggered by Covid restrictions. Security personnel in hazmat suits formed ranks shoulder-to-shoulder, taking cover under see-through riot shields, to make their way down a street in the southern city’s Haizhu district as glass smashed around them, videos posted on social media showed. In the footage — geolocated by AFP — people could be heard screaming and shouting, as orange and blue barricades were pictured strewn across the ground. People are seen...