Emergency mobile alert on New York explosion suspect sent after incident

"Elizabeth Joh, a law professor at the University of California, Davis, said that while desperate times call for desperate measures, it’s important to weigh those measures carefully. “The gravity of the situation is obvious,” she told the Guardian. “But that everyone with a camera and immediate access to social media should be enlisted by means of the cellphone [WEA] is a different question. It’s a difficult balance to strike.”"