為何大陸 暴動 多?

川工暴動 粵民喊殺
http://tw.nextmedia.com/applenews/article/art_id/33457263/IssueID/20110614
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潮州釀潮川大戰 「比伊拉克亂」
http://www.worldjournal.com/view/aChinanews/13956742/article-%E6%BD%AE%E5%B7%9E%E9%87%80%E6%BD%AE%E5%B7%9D%E5%A4%A7%E6%88%B0-%E3%80%8C%E6%AF%94%E4%BC%8A%E6%8B%89%E5%85%8B%E4%BA%82%E3%80%8D?instance=china_bull