The War in Ukraine Is Keeping Chinese Social Media Censors Busy “Artillery fire lights up the sky and breaks my heart. I hope my compatriots in Ukraine are taking care of themselves and their families, ”said a user on Weibo, often called China’s Twitter, on February 27. The message was quickly blocked, according to Free Weibo, a service of Great Fire, which tracks Chinese censorship online. Two days later, a very different message appeared on Weibo: “I support fighting! America and Taiwan have gone too far. ” That, too, was blocked, according to Free Weibo. The messages — and their...