Protests are “what America is all about. But this is bigger and more volatile” than in the recent past, said David S. Meyer, a professor at the University of California, Irvine and author of “The Politics of Protest: Social Movements in America.” “We’re in a moment where people are frustrated with institutional politics and where people see urgent issues that need addressing and for a moment they believe that taking action can make a difference,” he said.

For the full story, please visit https://www.nytimes.com/aponline/2018/04/22/us/ap-us-america-protests-why-now.html.