CDT presents a monthly series of censored content that has been added to our “404 Deleted Content Archive.” Each month, we ...

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China’s online censorship regime is often associated with overt blocks, deletions, and account bans, but these blunt and highly visible measures exist on a wide spectrum. Toward the harsher end are ...

A group of documents recently circulating online has stoked apprehension about a new wave of pressure on tools used to circumvent China’s Great Firewall. One memo, from online services provider Qihang ...

The Milk Tea Alliance is an online solidarity movement between pro-democracy supporters in Hong Kong, Taiwan, Thailand, and Myanmar. It was started in 2020 by activists involved in social movements ...

This Communist Party slogan was heavily used during the Cultural Revolution, an era in which citizens were incentivized to spy on and even falsely accuse family and neighbors of being disloyal to ...

Reference to Chinese artist and dissident Ai Weiwei (Ài Wèiwei 艾未未). The use of this code lead to the phrase "love the future" being blocked from Weibo search results around June-August 2011.

入侵之初，我们看到俄罗斯人上街抗议普京的画面，也听说了当局收紧法律、镇压抗议的消息。但我们从来不知道的是，这一切是如何渗透进俄罗斯最偏远角落的学校课堂的。你看到它如何渗透进社会的每一个角落，无处不在。人们的每一次对话，都可能涉及到它。说错一句话，你就 ...

各校公告措辞高度一致，外界普遍认为背后存在统一的上级部署，但教育部始终未公开发布相关行政令。Guardian、BBC、法广、自由亚洲电台等境外媒体将此定性为协调性审查行动，是"一校一声音"管控逻辑的体现。

从1966年11月9日至12月7日，谭厚兰率领红卫兵共毁坏文物6000余件，烧毁古书2700余册，各种字画900多轴，历代石碑1000余座，其中包括国家一级保护文物的国宝70余件，珍版书籍1000多册，这声浩劫是全国“破四旧”运动中损失最为惨重的。

这两件事的处理，真是当下现实的缩影：对发现社会问题、揭露社会问题的人，理应宽容并鼓励，让更多问题暴露出来得以改正改进，可现实是官员们想尽一切办法利用手里的权力去恐吓威胁问题发现者曝光者，试图将本就脆弱有限的外部监督扼杀。