In this week’s most shared tweets: China’s human rights hero, Liu Xiaobo died in custody, but his long, brave fight for freedom will be remembered in China and around the world; Yemen’s crisis deepens; Turkey concludes March for Justice; Leopoldo López moved from prison to house arrest, pressure is working; and after widespread criticism, President Trump and Congress reversed course and allowed an Afghan girls robotic team to participate in a US competition, they had been blocked by the travel ban.