Viewsroom: Chinese tech crackdown, The vax trade
Beijing took Alibaba, Tencent and others to task over monopolistic practices; and global financial markets got a boost from Pfizer\u2019s revelation that its Covid-19 vaccination may be super-effective. Breakingviews columnists around the world weigh in on both developing stories.\xa0 See acast.com/privacy for privacy and opt-out information.