Lufeng and Daan - More Protests, More Cities Disappear From Sina Weibo

 On July 3, 2012, the Hong Kong based Oriental Daily reported:

Yesterday evening thousands of villagers in Lufeng, Shanwei in Guangdong held a large demonstration in front of the township government to express their dissatisfaction over local officials colluding with black-hearted enterprises to undertake large scale strip mining of rare earth minerals near where drinking water for nearly one million people would be polluted. They clashed with riot police on the scene, and many police cars were overturned.
. . . .
An Internet user exposed materials online pointing out suspicions that officials and business people in Daan village in Lufeng, Shanwei were colluding, and had been mining rare earth minerals upstream from the Niujiaolong reservoir for over a year, causing pollution of the reservoir to the point where schools of fish were dying, and threatening the safety of drinking water for nearly one million people in several local villages.

广东汕尾陆丰数千村民，因不满当地村官与黑心企业勾结，大肆开采山头稀土致近百万人食水受污染，昨前往镇政府发起大规模示威，与在场防暴警冲突，多辆警车被推翻。
. . . .
有网民在网上爆料指，汕尾陆丰市大安镇疑有官员与商人勾结，在牛角隆水库上游非法开采稀土逾一年，造成水库受污染致鱼群死亡，威胁当地多条村接近一百万民众饮用水安全。

The screenshot shows that searches for "Daan" (大安) and "Lufeng" (陆丰) on Sina Weibo on July 3 and July 7, respectively, returned no results, just notices saying "In accordance with relevant laws, regulations, and policies, search results for 'Daan/Lufeng' have not been displayed." (根据相关法律法规和政策，“大安/陆丰”搜索结果未予显示。).