News Web sites in China, complying with secret government orders, are requiring that new users log on under their true identities to post comments, a shift in policy that the country’s Internet users and media have fiercely opposed in the past.
Until recently, users could weigh in on news items on many of the affected sites more anonymously, often without registering at all, though the sites were obligated to screen all posts, and the posts could still be traced via Internet protocol addresses.
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