Chinese regulators are investigating Tencent’s WeChat, Baidu’s Tieba, and Sina Weibo for user-generated content that “endangers national security” (Nyshka Chandran/CNBC)

Nyshka Chandran / CNBC: Chinese regulators are investigating Tencent’s WeChat, Baidu’s Tieba, and Sina Weibo for user-generated content that “endangers national security”  —  – Tencent, Baidu and Sina Weibo are being investigated by Chinese...