U of California System urges caution for students and faculty in China

The University of California System has warned students and faculty to avoid using online communication apps such as WeChat and WhatsApp while in China because those messages could be used against them by local law enforcement, CNN reported.A screenshot of the message published in the South China Morning Post advised them not to "sign anything" or voluntarily turn over a passport, engage in lengthy conversations with security personnel, make unfavorable comments or take pictures of government facilities without permission. It advised students to have a check-in procedure with others and report concerns to the U.S. Embassy.